Which gap filler has the best documentation?

Loctite Tite Foam Gaps & Cracks and Kraken Bond Gaps & Cracks are the two with a dated data sheet that prints a measurable figure: Loctite gives a joint width and a bead yield, Kraken gives a volumetric yield with its test method. Stanley publishes dated sheets for the F905 and F905P but no gap or yield number.

Is a "spray foam insulation" straw can the same as an insulation kit?

No. The cans on this page are sold by gap size and none publishes a coverage area. A kit is sold by board feet for open surfaces. The words on the label do not change what the can does.

Why is Great Stuff PRO listed on both this page and the fire block page?

Because DuPont describes it both ways: a gap filler for openings up to 3 inches that is also "fireblock formulated." One product record, two category tags.

Do the prices here update?

They are a dated snapshot from September 7, 2026, with a second read of the listings on September 8. Pack sizes on nine ASINs changed between those two days, so check the listing title before you buy.

Can I use expanding foam under a bathtub or shower base to support it?

None of the six gap filler data sheets we read (Loctite, Kraken Bond, Stanley F905 and F905P, Sprayman and TYTAN Fill All) lists a tub or shower base among its uses, and none calls its foam load-bearing or structural. Stanley’s F905 and F905P and Sprayman’s sheet claim "mounting capacity and stability", and those three plus Kraken Bond Gaps & Cracks print a compression strength of 4.35 psi (30 kPa), with TYTAN Fill All at 5 PSI or more, but no sheet says what load the foam is meant to carry. Kraken Bond’s sheet for its ThermaFoam wide-spray can, a different product, states "Not intended for load-bearing or structural bonding applications". For how the tub or shower base itself should be supported, its maker’s installation instructions are the place to look, and none of our records holds them.

Can I reuse a half-used can of gap filler, and how long does an unopened can last?

The straw and trigger can sheets that address it expect one session: Loctite’s Tite Foam sheet says "One-time use should be expected", and the Stanley F905 and Sprayman sheets ask you to use the whole can without stopping more than 5 minutes between sprays, because the foam dries in the applicator. Among the gap fillers, reuse is stated only for gun cans: DuPont’s page for Great Stuff PRO Gaps & Cracks says it is reusable for 30 days while left on the gun, and TYTAN’s Fill All sheet says to clean the applicator and valve with foam cleaner when a can is not used up. Unopened, Kraken Bond, Stanley F905 and F905P and Sprayman give a shelf life of 15 months, Loctite 18 months from the date of manufacture (15 months for its California can) and TYTAN Fill All 18 months from the manufacturing date, and DuPont’s safety data sheet for Great Stuff Gaps & Cracks gives a storage period of 18 months at 77 F. Loctite prints a BEST BY date on the bottom of the can.

Can I use gap filler foam around hot water or radiator pipes?

Water pipes are a listed use, but no sheet gives a pipe temperature: Kraken Bond Gaps & Cracks, Stanley F905 and F905P and Sprayman all name insulating water pipes among their applications. What each sheet prints is a temperature range for the cured foam: -103 to 239 F for Kraken Bond and Stanley F905, -40 to 176 F for Stanley F905P, Sprayman and Loctite, and -200 to +240 F for TYTAN Fill All. Loctite is the one of the six gap filler sheets with a hot-surface warning: the foam "Should not be used in contact with chimneys, heater vents, steam pipes" or other areas with surface temperatures greater than 187 F, and the label precautions on the same sheet say dried foam "may be combustible" if exposed to flame or temperatures above 240 F. The running temperature of your pipe is not in any of these documents, so it is the figure to check against the range on the can; for copper, Loctite and TYTAN both list metal among the materials their foam bonds to.

How much gap will one can of gap filler fill?

It depends on the bead, and only three of the six gap filler data sheets we read print a yield at all. Loctite says a 12 fl oz can extrudes a 3/8 in bead approximately 134.0 ft long, a figure it calls theoretical and for comparison; Kraken Bond prints a volumetric yield of 8 to 12 gal to ASTM C1536 for its 24 oz can; and TYTAN’s sheet for the 24 oz Fill All gives 502 ft of a 1/2 in wide bead in one row and 1463 ft of a 1/2 in bead in another, the second described as a theoretical calculation from free foaming under its internal method RB/024. Stanley’s F905 and F905P sheets call the foam high yield without a number, and Sprayman’s sheet prints none.

How wide a gap can a gaps and cracks foam fill before I need a big gap foam?

Up to 1 inch on the two consumer cans that state a size, and up to 3 inches on two gun cans. Loctite’s Tite Foam Gaps & Cracks sheet says the foam fills gaps and cracks up to 1 in and gives a maximum joint width of 1.6 inches, and DuPont’s page for the Great Stuff Gaps & Cracks straw can says up to 1 inch (25mm). Great Stuff PRO Gaps & Cracks says up to 3 inch (76mm), and TYTAN Fill All says 1/4 in to 3 in, though the same TYTAN sheet calls gaps over 1.18 in (3 cm) not recommended, and gaps over 1.97 in (5 cm) unacceptable, when sealing open woodwork. Kraken Bond, Stanley F905 and F905P and Sprayman print no gap width, and Great Stuff Big Gap Filler is not a can the site tracks, so we hold no document for it.

What will expanding foam not stick to?

Polyethylene, Teflon (PTFE) and silicone or siliconized surfaces, on all five of the gap filler data sheets we read that list exceptions: Loctite, Stanley F905 and F905P, Sprayman and TYTAN Fill All. Loctite adds "some plastic and rubber surfaces", the Stanley and Sprayman sheets add surfaces contaminated with oils, greases or mold release agents, and TYTAN adds polypropylene and polyamide. On the other side, TYTAN names glass, metal, masonry and plastic among the surfaces its foam bonds to and lists styrofoam among typical construction materials, and Loctite names wood, metal, stone, brick and PVC. The sixth sheet, Kraken Bond Gaps & Cracks, says only that the foam "Adheres to most building materials" and lists no exceptions.

Foam sealants by job · Intake screened September 7, 2026 · Listings read October 29, 2026

Best Gap and Crack Filler Foam

Category evidence order · #1

Loctite Tite Foam Gaps & Cracks

4 of 4 confirmedout of stock when read

Flexible white 1 in gap filler with the clearest consumer sheet in the set and 21,643 ratings; the sheet says it is not a fire stopping material.

Check price on Amazon Why it’s our pick

As an Amazon Associate I earn from qualifying purchases.

Gaps and cracks foam is the base product every other category on this site is built from. A can of expanding polyurethane, a straw or a gun, and a claim on top: none here, pest on the next page, orange for fire block, low expansion for window frames, black for ponds. This page compares the plain version on the only things a buyer can check, which are the gap size the maker states, the yield it prints, and whether a dated document exists at all.

Straight to the cans

The three this page puts first

Ordered by the evidence each can publishes, not by price. Every product, the full table and the records are below.

Loctite Tite Foam Gaps & Cracks

Flexible white 1 in gap filler with the clearest consumer sheet in the set and 21,643 ratings; the sheet says it is not a fire stopping material.

4 of 4 confirmed

out of stock when read

Check price
Kraken Bond Gaps & Cracks

High-expansion straw can with the only gap filler sheet that prints a volumetric yield and its method; the same sheet also lists window and door frames, while the brand sells a separate low-expansion frame foam.

4 of 4 confirmed

$19.991 x 24 oz

Check price
Kraken Bond PestSafe Foam Sealant

Documented as a filler, with a bead yield on a dated sheet; the pest side names no active ingredient, and the can carries three names.

4 of 4 confirmed

$12.991 x 12 oz

Check price

As an Amazon Associate I earn from qualifying purchases.

A gap filler that says "spray foam insulation" on the label is still a gap filler.

Seventeen of the forty-eight cans we track carry "insulation" in a listing title, and nine of those are straw or trigger cans. Not one of the nine publishes a coverage area: they are sold by the can and by gap size, not by the square foot. They seal a joint; they do not insulate a wall. If you are pricing an open wall or an attic, you want the kit ranking, and our coverage guide explains why the two are not interchangeable.

How this page is ordered

Four things we could confirm, and nothing we could not

Brand data sheetA technical data sheet published by the maker for this product. A safety data sheet or a web page is recorded but does not earn the mark, and where a sheet carries no date or revision the record says so.
Claim checkableFor a gap filler, "claim traceable" means the maker prints a gap size, an expansion statement or a yield figure in a dated document. A number on a web page or in a listing title does not count.
Brand-channel sellerThe Amazon seller of record is the brand or a storefront that carries only that brand in our intake. A multi-brand reseller or an unbranded trading company does not earn it.
100 or more ratingsOn the listing we link. A feedback base, not a verdict; how we read reviews is a separate guide.

Products are ordered by how many of four things we could confirm, then by the size of the buyer-feedback base: a dated technical data sheet from the brand, a category claim you can check against a figure in a dated document, a marketplace seller that is the brand or its single-brand distributor, and at least 100 ratings on the listing we link. This is not a performance score. Nothing on this page was applied or tested by us.

At a glance

19 gaps & cracks products, in evidence order

The number in the first column is a position, not a score: products with more of the four things confirmed come first, and ties are broken by how many people have rated the product. Under each heading is how many products on this page cleared that test. A circle means we looked and it was not there. Prices are the October 29, 2026 snapshot for the cheapest bare-can listing we hold; ratings were read October 29, 2026. Prices are snapshots, each dated where it appears, not live figures, so check the seller before you pay. Tap a name for the full record.

#	Product	Format	Ratings11 of 19 over 100	Cheapest packwe could verify
Straw cans, nothing else to buy
1	Loctite Tite Foam Gaps & Cracks Loctite Flexible white 1 in gap filler with the clearest consumer sheet in the set and 21,643 ratings; the sheet says it is not a fire stopping material.	Trigger can, 12 fl oz	21,814	no priceout of stock when read
2	Kraken Bond Gaps & Cracks Kraken Bond High-expansion straw can with the only gap filler sheet that prints a volumetric yield and its method; the same sheet also lists window and door frames, while the brand sells a separate low-expansion frame foam.	Straw, 12 oz and 24 oz	545	$19.991 x 24 oz
3	Kraken Bond PestSafe Foam Sealant Kraken Bond · also pest block Documented as a filler, with a bead yield on a dated sheet; the pest side names no active ingredient, and the can carries three names.	Straw, 12 oz	296	$12.991 x 12 oz
4	Stanley F993 Pest Block Stanley · also pest block The only pest sheet with a gap range, 1 to 3 in, and a pesticide statement in the sheet itself; the ingredient is not named.	Straw, 12 oz	258	$12.991 x 12 oz
5	Sprayman Pest Blocker Foam Sprayman · also pest block The biggest pest seller, 1K+ bought; the sheet protects the foam in one sentence and blocks insects in the next, and names no ingredient.	Straw, 12 oz	754	$17.991 x 12 oz
6	Sprayman Gaps & Cracks Filler Foam Sprayman 1K+ bought and 290 ratings; the sheet gives cure and temperature figures and no gap size, expansion or yield, and carries no date.	Straw, sold as 12 oz; sheet says 13.5 oz	331	$12.991 x 12 oz
7	Stanley F905 Gaps & Cracks Stanley Straw can with a full dated document set that prints a UL 723 pair and no gap or yield figure.	Straw, 12 oz and 24 oz	156	$17.991 x 24 oz
8	Kraken Bond Extreme Fire Block Kraken Bond · also fire block Dated sheet with both UL 723 indices, flame spread 10 and smoke 15, and a bead yield for each can size it sells. That is a surface-burning result, not a fireblocking test.	Straw, 12 oz and 24 oz	68	$21.991 x 24 oz
9	Great Stuff Gaps & Cracks Great Stuff The cream 1 in reference can, sold on Amazon by DuPont itself; performance lives on a web page, not a data sheet.	Straw can, 12 oz and 20 oz	1,922	$16.991 x 20 oz
10	Akfix 805 Gap Filler Akfix The second-biggest seller here, 400+ bought a month, with a data sheet link that returns a 404.	Straw, 12 oz and 25.3 oz	571	no price
11	Akfix 895 Mouse & Pest Barrier Akfix · also pest block 159 ratings and a "TDS" button that opens a 2022 safety data sheet; a pesticide is claimed with no ingredient named.	Straw, 12 oz	170	$13.991 x 12 oz
Gun cans, a foam gun is needed
1	TYTAN Professional Fill All TYTAN Professional Contractor 24 oz gun foam whose dated June 2026 sheet prints the full UL 723 pair and, unusually, says its bead yields are theoretical calculations from a free-foaming test.	Gun, 24 oz	11	$19.001 x 24 oz
2	Stanley F905P Gaps & Cracks Pro Stanley Gun version of the F905, documented the same way, cheapest as the bare 2 x 24 oz refill.	Gun, 24 oz	24	$26.992 x 24 oz
3	Kraken Bond Pro PestSafe Foam Kraken Bond · also pest block Gun version whose sheet says "special formula" while the store says pesticide; neither names an ingredient. Nine ratings.	Gun, 24 oz	12	$19.991 x 24 oz
4	Sprayman Pro Pest Blocker Foam Sprayman · also pest block Gun version, $19.99 bare or $44.95 with gun and cleaner on September 9; the store names six animals kept out, the sheet says the pesticide protects the foam.	Gun, 24 oz	0	no price
5	Great Stuff PRO Gaps & Cracks Great Stuff PRO · also fire block Orange 3 in gun foam that DuPont calls fireblock formulated; three test methods named, no figures, sold through a reseller.	Gun, 24 oz and 30 oz	528	$157.9512 x 24 oz
6	Akfix 805P Pro Gap Filler Akfix · also window and door Gun-grade 24 oz sibling whose low-expansion claim exists only in the Amazon title.	Gun, 24 oz	45	$14.991 x 24 oz
7	Enerfoam 30 oz Fireblock Rated Sealant Enerfoam · also fire block 30 oz gun foam sold through a reseller; DuPont makes it and calls it a fireblock on its own page, with no standard and no indices anywhere.	Gun, 30 oz	20	$235.4912 x 30 oz
8	Great Stuff PRO Pestblock Great Stuff PRO · also pest block Pesticide-free gray 3 in gun foam whose pest claim is the seal itself; the 3 in limit is on a web page, not in a data sheet.	Gun, 20 oz	34	$237.6712 x 20 oz

The records

Each product, the claim in its own words, and what stands behind it

Every figure names its source. Where a maker publishes nothing, the record says so; a blank is a finding, not an oversight.

As an Amazon Associate I earn from qualifying purchases. That fee never sets the order or the score.

Straw cans, nothing else to buy

The tube is taped to the can. You press the trigger, you use it, and what is left in the can hardens within hours on most of these labels. This is the list for a single job.

Loctite Tite Foam Gaps & Cracks

Flexible white 1 in gap filler with the clearest consumer sheet in the set and 21,643 ratings; the sheet says it is not a fire stopping material.

Trigger can, 12 fl oz White

See it on Amazon See it at Walmart Full record, documents and prices 4 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableThe gap limit, the maximum joint width and a theoretical bead yield are all printed in a dated data sheet.
Brand-channel sellerSold by Loctite (Henkel), the brand buyer.
100+ ratings21,814 ratings on the anchor listing

The claim, in the seller's words

"Expands to fill, seal, and insulate gaps & cracks inside or out up to one inch." The sheet also says the product "is not a fire stopping material and SHOULD NOT be used in areas that require fireproof or fire stopping materials."

Loctite technical data sheet, revision January 15, 2025

What the documents state

Gap size	Up to 1 in; maximum joint width 1.6 inTDS, Jan 15, 2025
Yield	About 134 ft of 3/8 in bead per 12 fl oz can, stated as a theoretical figureTDS
Cured form	Flexible solid, dimensional stability under 5 percent (TM 1004-2012)TDS
Working range	Ambient 23 to 95 F, can at 41 F or above; tack-free 6 to 8 min at 73 F and 50 percent RHTDS
Fire	Not a fire stopping material, in the sheet’s own wordsTDS

Desk note

The most-reviewed can in the whole intake by a wide margin, 21,643 ratings on September 7 and a "10K+ bought in past month" badge on September 8. The data sheet is the clearest consumer sheet we hold: it gives a joint width, a bead yield and, unusually, a plain sentence that the foam is not a fire stopping material. The flexibility claim is what separates it from the rigid polyurethane fillers on this page; the sheet describes the cured foam as a flexible solid.

Loctite lists one size on Amazon under its own name. The Big Gaps sibling, rated to 3 in on its own sheet, was not in the intake.
No R-value or thermal figure is published, which is appropriate for a gap filler and worth noticing when other cans print one.

Documents on file

TDSLOCTITE TITE FOAM Gaps & Cracks, technical data sheet · January 15, 2025
PAGELoctite product page

Sizes on Amazon, October 29, 2026 snapshot

The one Amazon listing we hold for this can had no purchase option on October 29, 2026 and named no seller.

Pack	Price	Ratings
1 x 12 oz	no price shownout of stock when read	21,814	Amazon

Kraken Bond Gaps & Cracks

High-expansion straw can with the only gap filler sheet that prints a volumetric yield and its method; the same sheet also lists window and door frames, while the brand sells a separate low-expansion frame foam.

Straw, 12 oz and 24 oz Light yellow

See it on Amazon See it at Walmart Full record, documents and prices 4 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableExpansion behavior, a volumetric yield with its test method and a density are printed in a dated, revision-numbered sheet.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings545 ratings on the anchor listing

The claim, in the seller's words

"High expansion rate." "Fixing and insulating window and door frames." Both statements appear on the same data sheet; Kraken also sells a separate low-expansion Window & Door Pro foam.

Kraken Bond technical data sheet FS 101, rev. 2, dated 4.9.2026

What the documents state

Expansion	High expansionTDS rev. 2
Yield	8 to 12 gal volumetric yield (ASTM C1536); density 1.37 lb/ft3 (ASTM D1622)TDS rev. 2
Thermal	About R-4.1 per inch, stated alongside 0.036 W/m.K to DIN 52612. The FTC rule at 16 CFR 460.5 names four US methods, three of which are conductivity measurements, so the objection is not the method type: DIN 52612 is a German standard that is not one of the four, and no aging basis is given. Taken on its own the 0.036 figure works out at R-4.01 per inch, so the two numbers on the sheet are close but not derived from each otherTDS rev. 2
Fire class	B3 to DIN 4102, the lowest German class; no US surface-burning figureTDS rev. 2
Working range	Application 28 to 86 F; tack-free 7 plus or minus 3 min (ASTM C1620)TDS rev. 2

Desk note

The most complete gap filler sheet in the intake alongside Loctite, and the only one to print a volumetric yield with the method behind it. The same sheet describes the foam as high expansion and lists fixing and insulating window and door frames as an application, while Kraken separately sells a low-expansion Window & Door Pro foam. That is not a conflict between the listing and the sheet; it is an unresolved product-selection question inside the maker’s own range. The single 24 oz can also carried the same price as the 12-pack, $149.99 on September 7, so check the selected pack before ordering.

Single 24 oz listing (B0CFJTZ2DR) priced at the 12-pack figure on September 7; check before ordering.

Documents on file

TDSKrakenBond FS101 Gaps & Cracks TDS · 4.9.2026 rev.2
PAGEKraken Bond product page

Sizes on Amazon, October 29, 2026 snapshot

1 of the 5 listings showed no purchase option on October 29, 2026.

Pack	Price	Ratings
2 x 12 oz4 duplicate listings at this size	$20.99	54550+ bought	Amazon
1 x 24 oz	$19.99	144	Amazon
2 x 24 oz	$29.99	144	Amazon
12 x 24 oz	$149.99	144	Amazon
48 x 24 oz	no price shownout of stock when read	0	Amazon

Kraken Bond PestSafe Foam Sealant

Documented as a filler, with a bead yield on a dated sheet; the pest side names no active ingredient, and the can carries three names.

Straw, 12 oz Light yellow Also in pest block

See it on Amazon See it at Walmart Full record, documents and prices 4 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableAs a gap filler this can is documented: the dated sheet prints a bead yield, an expansion statement and a working temperature range.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings296 ratings on the anchor listing

The claim, in the seller's words

The brand store says "Formulated with an EPA-registered pesticide." The sheet says the opposite in a bullet, "Long-Lasting Pesticide Free," and its sentence on what the foam contains is missing the word that would name it: "containing an that protects the foam from attack by mice, birds, bats, and tree squirrels." Amazon sells it as Pestblokc, "with Mothball Odor."

Kraken Bond technical data sheet SF 411, dated 5.14.2026; brand store; Amazon listing

What the documents state

Pest claim	Pesticide on the store; "Long-Lasting Pesticide Free" on the sheet; no EPA registration or establishment numberTDS and store
Yield	1,300 linear ft of 1/4 in bead from 13.5 fl ozTDS 5.14.2026
Expansion	High expansion rate for wide gapsTDS 5.14.2026
Working range	Application 23 to 86 F; shelf life 12 monthsTDS 5.14.2026

Desk note

The best-documented pest can as a filler: a dated sheet with a bead yield and a stated expansion. As a pest product its two documents disagree: the store claims an EPA-registered pesticide and the sheet says "Long-Lasting Pesticide Free", and neither publishes a registration number. The three names, PestSafe on the store and Pestblokc or Pestblock on Amazon, are a matching hazard rather than a mark against the product; the "Mothball Odor" in the Amazon title is the one place the marketplace hints at what is inside.

The store says the foam has an EPA-registered pesticide; the sheet dated 5.14.2026 says "Long-Lasting Pesticide Free".
EPA registration number not published.
Same formula sold under three names across two channels.

Documents on file

TDSKrakenBond SF411 Pest Safe Foam Sealant TDS · 5.14.2026
PAGEKraken Bond product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 12 oz	$12.99	29650+ bought	Amazon
2 x 12 oz	$22.99	296400+ bought	Amazon
12 x 12 oz	$94.99	29650+ bought	Amazon

Stanley F993 Pest Block

The only pest sheet with a gap range, 1 to 3 in, and a pesticide statement in the sheet itself; the ingredient is not named.

Straw, 12 oz Light yellow Also in pest block

See it on Amazon See it at Walmart Full record, documents and prices 4 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableThe dated sheet prints a 1 in to 3 in gap range, which is the figure a gap filler claim needs.
Brand-channel sellerSold by Nucleus Incorporated, which carries only the Stanley line in our intake.
100+ ratings258 ratings on the anchor listing

The claim, in the seller's words

"Contains EPA-registered pesticide that protects foam from attack by mice and other pests." "Expands to fill, seal & insulate gaps from 1 in to 3 in."

Stanley technical data sheet F993, rev. 1, 25.03.2025

What the documents state

Pest claim	EPA-registered pesticide stated on the sheet; no registration number printedTDS rev. 1
SDS ingredient	1,4-dichlorobenzene at 0.5 to 5 percent; the SDS does not identify it as the pesticide active ingredientSDS, issue date 09.12.2024
Gap size	1 in to 3 inTDS rev. 1
Thermal	About R-4.1 per inch, with no test method, no thickness and no aging basis printed next to itTDS rev. 1
Fire class	DIN 4102-1 B3TDS rev. 1

Desk note

The only pest can whose sheet prints a gap range, 1 to 3 in, and the only one with a "200+ bought in past month" badge on September 8. The pesticide statement sits in the technical sheet rather than only on a store page. Its SDS also lists 1,4-dichlorobenzene at 0.5 to 5 percent, but neither document says that substance is the active ingredient behind the pest claim. A 20 oz gun version, F993P, has its own sheet and no Amazon listing we could find.

EPA registration number not printed.

Documents on file

TDSStanley F993 Foam Sealant Pest Block, TDS · 25.03.2025 rev.1
SDSStanley F993 Foam Sealant Pest Block, SDS

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 12 oz	$12.99	258100+ bought	Amazon
2 x 12 oz	$23.99	258300+ bought	Amazon
12 x 12 oz	$92.99	258	Amazon

Sprayman Pest Blocker Foam

The biggest pest seller, 1K+ bought; the sheet protects the foam in one sentence and blocks insects in the next, and names no ingredient.

Straw, 12 oz Also in pest block

See it on Amazon See it at Walmart Full record, documents and prices 3 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand, without a date or revision on it
Claim checkableThe sheet prints cure and temperature figures but no gap size, expansion figure or yield, and it carries no date or revision.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings754 ratings on the anchor listing

The claim, in the seller's words

The brand store says the foam "contains an EPA-registered pesticide for blocking pests as rodent resistant insulation." The Amazon listing, under the name Pestblokc, makes no EPA statement.

sprayman.co product page and Amazon listing, read September 8, 2026

What the documents state

Pest claim	Pesticide claimed on the brand store and on the sheet; no EPA registration number, establishment number or active ingredient published on eitherBrand store and TDS
Working range	Application 23 to 86 F ambient and surface; can at 41 to 86 F, 68 F optimal; cured foam -40 to 176 FTDS, undated
Cure	Tack-free 7 plus or minus 3 min (ASTM C1620), cutting time 45 min or less, full cure 24 hoursTDS, undated
Names	Pest Blocker on the store; Pestblokc and Pest Block on AmazonStore vs listings
Use	"Best suited for outdoor use or in well-ventilated areas"Brand store
Gun version	The 24 oz Pro Pest Blocker gun foam has its own record on this pageStore and listings

Desk note

The biggest seller in the pest set: 674 ratings and "1K+ bought" on the 12-pack in the September 7 intake, and a "500+ bought in past month" badge on the single can on September 8. The claim that sells it, a pesticide inside the foam, is still the one a buyer cannot check. The data sheet does not help with that either: it names no active ingredient and no registration number. What it does add is the working end of the can and one sentence that matters more than any figure on it, because the sheet makes the exempt claim and the non-exempt claim one after the other.

EPA registration number and active ingredient published nowhere, including on the sheet; we have not seen the can label.
The sheet carries no date or revision.
Three ASINs for the 12-pack at one price split the feedback base.

Documents on file

PAGESprayman product page
TDSPest Blocker Foam technical data sheetOne sheet serves both the straw can and the gun can. Three pages, no date and no revision printed on it.

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 12 oz1 duplicate listing at this size	$17.99	754400+ bought	Amazon
2 x 12 oz	$33.99	7541K+ bought	Amazon
12 x 12 oz	$104.99	75450+ bought	Amazon

Sprayman Gaps & Cracks Filler Foam

1K+ bought and 290 ratings; the sheet gives cure and temperature figures and no gap size, expansion or yield, and carries no date.

Straw, sold as 12 oz; sheet says 13.5 oz

See it on Amazon See it at Walmart Full record, documents and prices 3 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand, without a date or revision on it
Claim checkableThe sheet prints cure, compression and temperature figures, but no gap size, no expansion figure and no yield, and it carries no date or revision. The "UL certified" line on the store has no category or file number and does not appear on the sheet at all.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings331 ratings on the anchor listing

The claim, in the seller's words

"Single-component, polyurethane expanding foam ... designed for quick and effective filling." "UL certified for safety and performance."

sprayman.co product page, read September 8, 2026

What the documents state

Package identity	The brand store and marketplace listings say 12 oz; the undated technical sheet says 13.5 ozBrand store, listings and TDS
Finish	Moisture and mold resistant, over-paintableBrand store
Working range	Application 23 to 86 F ambient and surface; can at 41 to 86 F, 68 F optimalTDS, undated
Cure	Tack-free 7 plus or minus 3 min (ASTM C1620), cutting time 40 min or less, full cure 24 hoursTDS, undated
Service	Cured foam -40 to 176 FTDS, undated

Desk note

The sheet gives the working end of the can and not the selling end: application from 23 F, tack-free in about seven minutes, cut at forty, full cure in a day. What it does not give is the part this category is marked on, a gap size or an expansion figure or a yield, and it prints no date or revision, so nothing on it can be pinned to a version. The "UL certified" line on the store does not appear on the sheet at all. Sprayman publishes a technical data sheet for every sealant it sells, behind a button marked TDS on each product page. Separately, the same single-can listing exists under five ASINs at the same price, which spreads the feedback base and makes the volume look smaller than it is.

The sheet carries no date or revision, so there is no way to tell which formulation it describes.
The sheet says 13.5 oz while the brand store and marketplace listings say 12 oz; no version marker resolves which package the sheet covers.
"UL certified for safety and performance" appears on the store and nowhere on the sheet; no category or file number is given.
Five duplicate ASINs for the single 12 oz can.

Documents on file

PAGESprayman product page
TDSGaps & Cracks Filler Foam technical data sheetThree pages, no date and no revision number printed anywhere on it.

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 12 oz3 duplicate listings at this size	$12.99	331100+ bought	Amazon
2 x 12 oz1 duplicate listing at this size	$23.99	331500+ bought	Amazon
12 x 12 oz	no price shown	0	Amazon

Stanley F905 Gaps & Cracks

Straw can with a full dated document set that prints a UL 723 pair and no gap or yield figure.

Straw, 12 oz and 24 oz Light yellow

See it on Amazon Full record, documents and prices 3 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableThe sheet is dated and revision-numbered but prints no gap-size, expansion or yield figure for the gap-filling claim itself.
Brand-channel sellerSold by Nucleus Incorporated, which carries only the Stanley line in our intake.
100+ ratings156 ratings on the anchor listing

The claim, in the seller's words

"High yield foam sealant" for "wider gaps, joints and cavities." The sheet prints a UL 723 result on a plain gap filler, flame spread 10 and smoke developed 20, which is unusual.

Stanley technical data sheet F905, rev. 1, 26.03.2025

What the documents state

Fire	DIN 4102-1 B3; UL 723 flame spread 10, smoke developed 20TDS rev. 1
Cure	Tack-free 7 plus or minus 3 min, cutting time 40 min or less (ASTM C1620)TDS rev. 1
Service	Cured foam -103 to 239 F; application 41 to 86 FTDS rev. 1
Pack	Net 24 oz / 680 g on the sheet; 12 oz listings exist on AmazonTDS and listings

Desk note

Stanley publishes a full document set for this can, TDS and SDS, from its own documents page. What the sheet lacks is the one number a gap filler buyer wants, a gap width or a yield; "high yield" is the whole statement. The Amazon titles call it "spray foam insulation," which is the naming habit the coverage guide warns about: this is sold by the can, not by the square foot.

The sheet describes a 24 oz can; the 12 oz listings are not separately documented.
Amazon titles describe the can as "Polyurethane Spray Foam Insulation." It is a gap filler.

Documents on file

TDSStanley F905 Foam Sealant Gaps & Cracks, TDS · 26.03.2025 rev.1
SDSStanley F905 Gaps & Cracks Foam, SDS

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
2 x 12 oz	$18.99	156200+ bought	Amazon
48 x 12 ozThis listing was selling 12 x 12 oz, not the pack this row tracks, so its price is withheld2 duplicate listings at this size	price withheld	156	Amazon
1 x 24 oz	$17.99	61	Amazon
2 x 24 oz	$29.99	61	Amazon
12 x 24 oz	$129.99	61	Amazon

Kraken Bond Extreme Fire Block

Dated sheet with both UL 723 indices, flame spread 10 and smoke 15, and a bead yield for each can size it sells. That is a surface-burning result, not a fireblocking test.

Straw, 12 oz and 24 oz Light red Also in fire block

See it on Amazon See it at Walmart Full record, documents and prices 3 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableThe dated sheet prints a bead yield for both can sizes and an expansion statement, which is what a gap filler claim needs.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings68 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

"UL Score: Flame Spread 10, Smoke Developed 15 (UL 723)." Described as a high-expansion foam for "filling, sealing, and bonding gaps."

Kraken Bond technical data sheet FR 201, dated 5.14.2026

What the documents state

Fire	UL 723 flame spread 10, smoke developed 15; no tested thickness, configuration or file numberTDS 5.14.2026
Yield	2,240 linear ft of 1/4 in bead from the 20.3 fl oz can; 1,493 ft from 13.5 fl ozTDS 5.14.2026
Expansion	High expansionTDS 5.14.2026
Shelf life	12 monthsTDS 5.14.2026
Working range	Application 41 to 86 FTDS 5.14.2026
Listing	ICC-ES ESL-1058 names this foam for surface burning at a 1/2 in bead, flame spread 25 or less and smoke developed 450 or less; it is not a fireblocking testESL-1058, April 2026

Desk note

One of six fire block sheets in the intake that print both surface-burning indices under a named standard, with Sprayman’s undated Fire Stop sheet, Stanley’s F952 sheet and three dated TYTAN sheets. This one is dated and names both cans it sells, and it is the only sheet here that states a bead yield for each of two can sizes on one page, 2,240 ft from the 20.3 fl oz can and 1,493 from the 13.5. That is the shape of a checkable claim. What it still lacks is the tested thickness and a fireblocking test: the ICC-ES listing its product page cites, ESL-1058, covers surface burning only. The brand also sells a gun-grade "Xtreme Pro" fire block (FR 202) that claims Class A to ASTM E84 with a 1/4 to 3 in gap range; we have not matched it to an Amazon listing.

No tested thickness, laboratory or report number on the sheet.
The 24 oz "cleaner included" listings had no ratings on September 7.

Documents on file

TDSKrakenBond FR201 Extreme Fire Block TDS · 5.14.2026Revision field is blank on the sheet. The file address the product page carried on September 8 returned 404 on September 14, 2026; the page now links this file, which prints the same date, 5.14.2026, the same blank revision field and both can sizes.
PAGEKraken Bond product pageThe page cites ICC ESL-1058 for its fire claim.
SDSKraken Bond Extreme Fire Foam B2 (Straw), SDS · 12.09.2023
ESLICC-ES Listing Report ESL-1058 · Reissued April 2026Names this foam for surface burning at a nominal 1/2 in bead: flame spread 25 or less and smoke developed 450 or less to UL 723 and ASTM E84. It is not a fireblocking test.

Sizes on Amazon, October 29, 2026 snapshot

3 of the 9 listings showed no purchase option on October 29, 2026.

Pack	Price	Ratings
1 x 12 ozThis listing was selling 12 x 12 oz, not the pack this row tracks, so its price is withheld1 duplicate listing at this size	price withheld	45	Amazon
2 x 12 oz	price withheld	54	Amazon
1 x 24 oz	$21.99	68	Amazon
2 x 24 oz	$36.99	68100+ bought	Amazon
12 x 24 oz	$169.99	68	Amazon
24 x 24 ozThis listing was selling 1 x 24 oz, not the pack this row tracks, so its price is withheld	price withheld	68	Amazon
48 x 24 oz	price withheld	68	Amazon
1 x 24 ozwith gun	no price shownout of stock when read	0	Amazon
2 x 24 ozwith gun	no price shownout of stock when read	0	Amazon
12 x 24 ozwith gun	no price shownout of stock when read	0	Amazon

Cheapest per ounce 12 x 12 oz, straw can

Great Stuff Gaps & Cracks

The cream 1 in reference can, sold on Amazon by DuPont itself; performance lives on a web page, not a data sheet.

Straw can, 12 oz and 20 oz Cream

See it on Amazon Full record, documents and prices 2 of 4 confirmed

Brand data sheeta safety data sheet or a brand page is published, no technical data sheet found
Claim checkableThe 1 in limit is stated on the brand page, but no dated data sheet with a yield or expansion figure is published for the consumer can.
Brand-channel sellerSold by DuPont, the brand buyer.
100+ ratings1,922 ratings on the anchor listing

The claim, in the seller's words

"Expands to fill, seal, and insulate gaps and cracks up to 1 inch (25mm)." Described on the brand page as a "minimal-expansion insulating foam sealant."

DuPont Great Stuff product page, read September 8, 2026

What the documents state

Gap size	Up to 1 inBrand page
Cure	Tack-free in 5 to 15 min at 70 F and 50 percent RH for a 1 in bead; trimmable in one hourBrand page
Use	Interior and exterior, paint or cover outdoors; product temperature 60 to 90 FBrand page
Listing	"UL classified" with no category and no file number, which is the same gap we flag on other brandsBrand page

Desk note

The category reference product for most US buyers, sold on Amazon by DuPont itself. The 20 oz "157911" listing carried 1,911 ratings and a "500+ bought in past month" badge on September 8, while the brand page lists only the 12 oz can, so the larger can is a marketplace item you will not find described on greatstuff.dupont.com. Everything the brand says about performance sits on a web page rather than a data sheet; that is the gap in an otherwise easy record.

The 20 oz can (item 157911) is not described on the brand site; its gap limit is assumed to match the 12 oz can and has not been confirmed.

Documents on file

SDSGaps and Cracks with Smart Dispenser, SDS 000001157441The brand page offers the SDS and a consumer safety leaflet. No technical data sheet is offered for the consumer can.
PAGEGreat Stuff Gaps & Cracks product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
12 x 12 oz	$53.99	8751K+ bought	Amazon
1 x 20 oz	$16.99	1,922500+ bought	Amazon

Akfix 805 Gap Filler

The second-biggest seller here, 400+ bought a month, with a data sheet link that returns a 404.

Straw, 12 oz and 25.3 oz

See it on Amazon Full record, documents and prices 2 of 4 confirmed

Brand data sheetwe looked on the brand store and the marketplace listings and found no data sheet
Claim checkableNo figure for gap size, expansion or yield anywhere we could read, and the data sheet link is broken.
Brand-channel sellerSold by Wios Global Trade LLC, which carries only the Akfix line in our intake.
100+ ratings571 ratings on the anchor listing

The claim, in the seller's words

"A single-component, moisture-curing and self-expanding aerosol polyurethane foam ... designed for easy dispensing through the straw adapter." No gap size, yield or expansion figure is given.

akfixstore.com product page, read September 8, 2026

What the documents state

Sizes	12 oz and 25.3 oz cans; 1 to 48 packs on the brand storeBrand store
Adhesion	Most building materials except polyethylene, Teflon, silicone and oily surfacesBrand store
Finish	Mold-proof, water-proof, over-paintable; cured foam can be trimmed and sandedBrand store

Desk note

The second-biggest gap filler seller in the intake after Loctite: 508 ratings on the 2 x 12 oz listing and a "400+ bought in past month" badge on September 8. Its evidence is the weakest of the major brands here, not because Akfix publishes bad numbers but because the data sheet button leads nowhere. Akfix has published detailed sheets for its other lines, so this looks like a broken link rather than a policy.

Data sheet link broken on the brand store on September 8 and again on September 14, 2026; on the re-check list.
The 12-pack of 25.3 oz cans (B0CQ4QRRVN) is the only pack above two cans in the intake.

Documents on file

TDS805 Big Gap Filler PU Foam, TDS link on the brand storeThe link on the product page returned a 404 page on September 8, 2026 and again on September 14, 2026, when the store still linked the same file path. No copy is on file. Recorded as absent until it resolves.
PAGEAkfix store product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
2 x 12 ozThis listing was selling 1 x 12 oz, not the pack this row tracks, so its price is withheld4 duplicate listings at this size	price withheld	571200+ bought	Amazon
2 x 25.3 ozThis listing was selling 12 x 25.3 oz, not the pack this row tracks, so its price is withheld3 duplicate listings at this size	no price shown	150	Amazon
12 x 25.3 oz	no price shown	150	Amazon

Akfix 895 Mouse & Pest Barrier

159 ratings and a "TDS" button that opens a 2022 safety data sheet; a pesticide is claimed with no ingredient named.

Straw, 12 oz Also in pest block

See it on Amazon Full record, documents and prices 2 of 4 confirmed

Brand data sheeta safety data sheet or a brand page is published, no technical data sheet found
Claim checkableThe only document is a safety sheet in EU format; no gap, expansion or yield figure is published anywhere.
Brand-channel sellerSold by Wios Global Trade LLC, which carries only the Akfix line in our intake.
100+ ratings170 ratings on the anchor listing

The claim, in the seller's words

"Contains an EPA-registered pesticide, effectively serving as a mouse hole blocker." "Conforms to fire class B3 (DIN 4102-1)." Sold on Amazon as 895 PestBlocker.

akfixstore.com product page, read September 8, 2026

What the documents state

Pest claim	Pesticide claimed; no registration numberBrand store
SDS ingredient	1,4-dichlorobenzene at 0.5 to 5 percent; the SDS does not identify it as the pesticide active ingredientSDS, 18.11.2022 version 00
Documents	The store’s "TDS" button opens a safety data sheet in EU REACH format, issued 18.11.2022, version 00Brand store
Fire class	DIN 4102-1 B3Brand store

Desk note

A well-reviewed can, 159 ratings and "100+ bought," whose one document is a safety data sheet filed under a technical data sheet button. The SDS lists 1,4-dichlorobenzene at 0.5 to 5 percent, but it does not identify that substance as the pesticide active ingredient or connect it to the store’s pest claim.

TDS button opens the SDS; no technical sheet found.
EPA registration number not published.

Documents on file

SDS895 Mouse & Pest Barrier PU Foam, safety data sheet (linked as TDS) · 18.11.2022, version 00The link is labeled TDS on the store and opens an SDS.
PAGEAkfix store product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 12 oz1 duplicate listing at this size	$13.99	17050+ bought	Amazon
12 x 12 oz	$93.99	170	Amazon

Gun cans, a foam gun is needed

These thread onto a foam gun, which is a separate purchase from about $15 to $56. In return you get a bead you can meter, and on most of these the can stays usable on the gun for weeks. This is the list for repeat work.

TYTAN Professional Fill All

Contractor 24 oz gun foam whose dated June 2026 sheet prints the full UL 723 pair and, unusually, says its bead yields are theoretical calculations from a free-foaming test.

Gun, 24 oz

See it on Amazon Full record, documents and prices 3 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableThe dated sheet covers the 24 oz gun can sold here and states its own yield method, RB/024, in writing. The UL 723 figures carry no tested thickness, laboratory or file number for the UL classified line.
Brand-channel sellerSold by Selena USA Inc, which carries only the TYTAN Professional line in our intake.
100+ ratings11 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

"Gap & Crack Filler for Windows, Doors & Walls, Air Seal, Waterproof Polyurethane Foam."

Amazon listing title, read September 8, 2026

What the documents state

Fire	UL 723 (ASTM E84) flame spread 15, smoke developed 10, and UL classified; DIN 4102 class B3 and EN 13501-1 class F on the same sheetTDS 08.06.2026
Yield	The same table prints 502 ft for a "1/2 in width bead" and 1,463 ft for a "1/2 in bead". It describes the 1,463 ft figure as a theoretical calculation from free-foaming yield under internal method RB/024, but does not reconcile the two 1/2 in rowsTDS 08.06.2026
Expansion	90 to 130 percent post-expansion; 24-hour full cureTDS 08.06.2026

Desk note

The most recently dated sheet of the four TYTAN cans here, updated June 2026, and one of the few documents in this whole intake that states how its own bead-yield figures were produced: theoretical calculations from a free-foaming test under internal method RB/024. Read the table carefully, because it prints 502 ft for a "1/2 in width bead" and 1,463 ft for a "1/2 in bead" without explaining the difference. It also carries the full UL 723 result to ASTM E84 at flame spread 15 and smoke developed 10 and says it is UL classified, alongside DIN 4102 class B3 and EN 13501-1 class F in the same table.

The sheet prints 502 ft and 1,463 ft for two differently worded 1/2 in bead rows and does not reconcile them.
UL classified is stated without a file or control number.
No tested thickness or laboratory for the UL 723 result.

Documents on file

TDSTYTAN Professional Fill All technical data sheet · 08.06.2026

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 24 oz	$19.00	11	Amazon
12 x 24 oz3 duplicate listings at this size	$129.00	11	Amazon

Cheapest per ounce 12 x 24 oz, gun can

Stanley F905P Gaps & Cracks Pro

Gun version of the F905, documented the same way, cheapest as the bare 2 x 24 oz refill.

Gun, 24 oz Light yellow

See it on Amazon Full record, documents and prices 2 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableDated sheet, but no gap-size, expansion or yield figure.
Brand-channel sellerSold by Nucleus Incorporated, which carries only the Stanley line in our intake.
100+ ratings24 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

"High yield foam sealant," gun applied.

Stanley technical data sheet F905P, rev. 1, 25.03.2025

What the documents state

Fire class	DIN 4102-1 B3TDS rev. 1
Pack	Net 24 oz / 680 g / 600 ml; shelf life 15 monthsTDS rev. 1
Kits	Amazon sells it bare or with a gun and cleanerListings

Desk note

The gun version of the F905 with the same document pattern: a complete set that stops short of a number. The 1 x 24 oz kit with gun and cleaner is the entry point most buyers take, and the bare 2 x 24 oz is the refill.

No yield or gap figure on the sheet.

Documents on file

TDSStanley F905P Foam Sealant Gaps & Cracks Pro, TDS · 25.03.2025 rev.1
SDSStanley F905P Foam Sealant Gaps & Cracks Pro, SDS

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
2 x 24 oz	$26.99	40	Amazon
12 x 24 oz	$99.99	26	Amazon
1 x 24 ozwith gun	$41.59	24	Amazon
12 x 24 ozwith gunThis listing was selling 1 x 24 oz, not the pack this row tracks, so its price is withheld2 duplicate listings at this size	price withheld	24	Amazon

Kraken Bond Pro PestSafe Foam

Gun version whose sheet says "special formula" while the store says pesticide; neither names an ingredient. Nine ratings.

Gun, 24 oz Light yellow Also in pest block

See it on Amazon Full record, documents and prices 2 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand
Claim checkableThe dated sheet prints cure times and a pack size but no gap, expansion or yield figure, which is what this page asks for.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings12 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

The sheet says "Contains a special formula for pest protection" and "Helps block the entry of pests." The brand store says "Reinforced with an EPA-registered pesticide."

Kraken Bond technical data sheet SF 412, rev. 3, dated 4.9.2026; brand store

What the documents state

Pest claim	The sheet says "special formula"; the store says pesticide; no registration numberTDS vs store
Cure	Skin time 7 plus or minus 3 min, cutting time 40 min or less (ASTM C1620)TDS rev. 3
Pack	Net 24 oz / 680 g; shelf life 12 monthsTDS rev. 3

Desk note

The gun version, documented and thinly reviewed: nine ratings on the bare can. Notice that the sheet and the store describe the pest ingredient differently, "special formula" against "EPA-registered pesticide." That difference is worth a question to the brand before a contractor specifies it for a pest job.

Sheet and store describe the active ingredient differently.
Nine ratings on the anchor listing.

Documents on file

TDSKrakenBond SF412 Pest Safe Foam TDS · 4.9.2026 rev.3
PAGEKraken Bond product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 24 oz	$19.99	12	Amazon
2 x 24 oz	$29.99	12	Amazon
12 x 24 oz	$129.99	12	Amazon
1 x 24 ozwith gun	$49.99	12	Amazon
2 x 24 ozwith gun	$59.99	12	Amazon
12 x 24 ozwith gun	$169.99	12	Amazon

Sprayman Pro Pest Blocker Foam

Gun version, $19.99 bare or $44.95 with gun and cleaner on September 9; the store names six animals kept out, the sheet says the pesticide protects the foam.

Gun, 24 oz Also in pest block

Full record, documents and prices 2 of 4 confirmed

Brand data sheeta technical data sheet is published by the brand, without a date or revision on it
Claim checkableThe sheet now backs the working range and cure times, and it prints no gap size, expansion figure or yield, and no date or revision.
Brand-channel sellerSold by Lotus Global Trade LLC, the storefront that carries the Kraken Bond and Sprayman lines and no other brand in our intake.
100+ ratings0 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

The brand store calls it "powered by an EPA-registered pesticide" and a "rodent sealant" that keeps "mice, rats, birds, bats, ants, and roaches" out, and lists it as "Professional Grade" for contractors.

sprayman.co product page, read September 9, 2026

What the documents state

Pest claim	Pesticide claimed as EPA-registered; no registration number and no active ingredient namedBrand store
Working range	The sheet gives two ranges: ambient and surface 23 to 86 F, can and applicator 41 to 86 F. The store gives one figure, 41 to 86 F, which is the can range rather than the ambient range. Cured foam -40 to 176 F on bothTDS, undated, against the brand store
Cure	Tack-free 7 plus or minus 3 min (ASTM C1620), cutting time 45 min or less, full cure 24 hours, then trimmable, sandable and paintableTDS, undated
Hazard	The page names diphenylmethane-4,4'-diisocyanate and asks for a ventilated area, gloves and eye protectionBrand store
Straw sibling	The 12 oz Pest Blocker straw can is the same line without the gun threadBrand store

Desk note

The gun version of the Pest Blocker, and the only pest can in this set sold as a bare can and as a set with the gun and cleaner in the same listing. On September 9 the store priced it at $19.99 for one can and $44.95 for the set, which is the clearest statement on this page of what the tool costs on top of the foam. Its pest claim goes further than the straw version: that one says the foam contains a pesticide, this one says it keeps six named animals out. Neither names the ingredient, and the further claim is the one that would need a registration number behind it.

EPA registration number and active ingredient published nowhere, including on the sheet; we have not seen the can label.
No Amazon listing matched: the 24 oz Sprayman listings we found carry a pond and landscape title.
The sheet carries no date or revision.
The store prints the can temperature range as the application range, which is 18 degrees narrower at the cold end than the sheet allows.

Documents on file

PAGESprayman Pro Pest Blocker product page
TDSPest Blocker Foam technical data sheetOne sheet serves both the straw can and the gun can. Three pages, no date and no revision printed on it.

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings

Great Stuff PRO Gaps & Cracks

Orange 3 in gun foam that DuPont calls fireblock formulated; three test methods named, no figures, sold through a reseller.

Gun, 24 oz and 30 oz Orange Also in fire block

See it on Amazon See it at Walmart Full record, documents and prices 1 of 4 confirmed

Brand data sheeta safety data sheet or a brand page is published, no technical data sheet found
Claim checkableThe 3 in gap limit is on a brand web page, not in a dated data sheet, and this page does not accept a number from a web page.
Brand-channel sellerSold by M&P Export Management Corporation, a reseller that lists Great Stuff, Enerfoam and DAP products. The brand itself is not the seller of record.
100+ ratings528 ratings on the anchor listing

The claim, in the seller's words

"Expands to fill, seal, and insulate gaps up to 3 inch (76mm)." "Fireblock formulated and orange-colored for easy inspection identification." "Tested according to ASTM E84, ASTM E814 (modified), UL 1715."

DuPont Great Stuff PRO product page, read September 8, 2026

What the documents state

Gap size	Up to 3 in with the PRO dispensing gunBrand page
Fire	Three test methods named, ASTM E84, ASTM E814 modified and UL 1715; no index values or report numbers on the pageBrand page
Reuse	Reusable for 30 days while left on the gunBrand page
Cure	Tack-free in 3 to 10 min; trimmable in one hourBrand page
Listing	"UL classified" with no category and no file number, which is the same gap we flag on other brandsBrand page

Desk note

The one product that belongs to both the gap filler and the fire block sets by its own description: a 3 in gun foam that is "fireblock formulated." It is also the best-known orange can in the trade. On Amazon it reaches buyers through a reseller rather than DuPont, in listings whose titles do not state the pack count, so the same "24 oz" title can be a single can at one price and a case at another. Read the listing body, not the title, before you compare prices.

The 30 oz can sold on Amazon does not appear on the brand page, which lists 24 oz only.
For fire block use the buyer needs the tested configuration and the index values. DuPont names the methods only; the complete version of such a claim, with file numbers, exists in the trade (Loctite publishes one for its Pro Gaps & Cracks Foam), so this is a publishing choice rather than a limit of the category.

Documents on file

SDSPRO Gaps & Cracks for PRO Dispensing Gun, SDS 000001156764SDS only. No technical data sheet on the brand page.
PAGEGreat Stuff PRO Gaps & Cracks product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
12 x 24 oz	$157.95	4	Amazon
pallet, 16 cases of 24 oz	$2410.49	298	Amazon
24 oz, pack count not in the title	$157.95	298200+ bought	Amazon
12 x 30 oz	$194.29	0	Amazon
30 oz, pack count not in the title	$194.28	58	Amazon
complete kit, 24 oz can with gun, cleaner and gloveswith gun	$79.29	264200+ bought	Amazon
24 oz kit, pack count not in the titlewith gun2 duplicate listings at this size	$199.00	528100+ bought	Amazon
1 x 30 ozwith gunThis listing was selling 12 x 30 oz, not the pack this row tracks, so its price is withheld	price withheld	39	Amazon

Akfix 805P Pro Gap Filler

Gun-grade 24 oz sibling whose low-expansion claim exists only in the Amazon title.

Gun, 24 oz Also in window and door

See it on Amazon Full record, documents and prices 1 of 4 confirmed

Brand data sheetwe looked on the brand store and the marketplace listings and found no data sheet
Claim checkableThe low-expansion claim exists only in a marketplace title. No document supports or contradicts it.
Brand-channel sellerSold by Wios Global Trade LLC, which carries only the Akfix line in our intake.
100+ ratings45 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

The Amazon title says "Low Expansion Foam for Sound & Heat Insulation, Window & Door." The brand store says only "single-component, moisture-curing, self-expanding polyurethane foam ... designed for easy application using foam gun."

Amazon listing title and akfixstore.com, read September 8, 2026

What the documents state

Expansion	"Low expansion" appears in the marketplace title only; the brand store does not say itListing vs brand store
Sizes	24 oz can, 1 to 12 packs, with or without a gun setBrand store

Desk note

A gun-grade sibling of the 805 whose window and door claim lives in the Amazon title and nowhere else. Until the data sheet link works, treat it as a general gun foam. Its listings duplicate heavily: six ASINs for the same 12-pack at the same price on September 7.

Data sheet link broken on September 8 and again on September 14, 2026; on the re-check list.
Six duplicate ASINs for the 12 x 24 oz pack split the feedback base.

Documents on file

TDS805P Pro Gap Filler PU Foam, TDS link on the brand storeReturned a 404 page on September 8, 2026 and again on September 14, 2026, when the store still linked the same file path. No copy is on file. Recorded as absent until it resolves.
PAGEAkfix store product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
1 x 24 oz	$14.99	45	Amazon
12 x 24 ozThis listing was selling 2 x 24 oz, not the pack this row tracks, so its price is withheld5 duplicate listings at this size	price withheld	45	Amazon
2 x 24 ozwith gun	$59.99	45	Amazon

Enerfoam 30 oz Fireblock Rated Sealant

30 oz gun foam sold through a reseller; DuPont makes it and calls it a fireblock on its own page, with no standard and no indices anywhere.

Gun, 30 oz Also in fire block

See it on Amazon 1 of 4 confirmed

Brand data sheetbrand documents not yet checked
Claim checkableDuPont makes it and publishes a page for it, where the company itself calls the foam recognized as a fireblock and explains what a fireblock does. That page names no standard and prints no flame spread or smoke index, and its information sheets sit behind a script rather than a file, so the listing claim still has no number a reader can check.
Brand-channel sellerDuPont makes Enerfoam and lists it on its own products site. The Amazon listing is run by M&P Export Management Corporation, a reseller that also carries Great Stuff and DAP, so the seller of record is not the maker.
100+ ratings20 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

"Fireblock Rated, Polyurethane Expanding Foam Sealant. Gaps and Cracks Filler."

Amazon listing title, read September 8, 2026

What the documents state

Sizes	12-pack of 30 oz cans, $235.49 with 20 ratings on September 7; an AWF PRO branded kit with gunListings

Desk note

A 30 oz gun foam sold through the same reseller that lists Great Stuff PRO. The maker is DuPont, which was worth five minutes to establish, and DuPont calls the foam recognized as a fireblock on its own page and describes what a fireblock does. What neither the page nor the listing gives is a standard or a pair of indices, so the strongest thing anyone can say about this can is that its maker says the word.

DuPont links product information sheets and safety data sheets behind a script; none resolved to a file we could read.
No standard, flame spread or smoke index appears on the maker page or the listing.

Documents on file

Brand documents not yet checked.

Sizes on Amazon, October 29, 2026 snapshot

1 of the 2 listings showed no purchase option on October 29, 2026.

Pack	Price	Ratings
12 x 30 oz	$235.49	20	Amazon
12 x 30 ozwith gun2 duplicate listings at this size	no price shownout of stock when read	11	Amazon

Great Stuff PRO Pestblock

Pesticide-free gray 3 in gun foam whose pest claim is the seal itself; the 3 in limit is on a web page, not in a data sheet.

Gun, 20 oz Gray Also in pest block

See it on Amazon See it at Walmart Full record, documents and prices 0 of 4 confirmed

Brand data sheeta safety data sheet or a brand page is published, no technical data sheet found
Claim checkableThe 3 in gap limit comes from a brand web page rather than a dated data sheet, and a number on a web page does not earn this mark.
Brand-channel sellerSold by M&P Export Management Corporation, a reseller that lists Great Stuff, Enerfoam and DAP products. The brand itself is not the seller of record.
100+ ratings34 ratings on the anchor listing, under the 100 we ask for

The claim, in the seller's words

"Pest-free without the pesticides." "Controls critters, bugs, rats, and other pests from your home." "Won’t harm bees." "Expands to fill, seal, and insulate gaps up to 3 inches."

DuPont Great Stuff PRO Pestblock product page, read September 8, 2026

What the documents state

Pest claim	Pesticide-free; the barrier is the seal itselfBrand page
Gap size	Up to 3 inBrand page
Listings	"UL classified" with no category or file number. CCMC 13074-L is a Canadian Construction Materials Centre evaluation number, which carries no weight with a US code officialBrand page
Cure	Tack-free in 6 min; trimmable in one hourBrand page

Desk note

The one pest can in the intake that says plainly what it is: a gap filler with no pesticide, whose pest function is the physical seal. That makes its claim the easiest to understand and the only one on this page that does not depend on a number nobody publishes. "Controls rats" is a stronger sentence than "seals openings," and rodents gnaw cured foam, so read it as a seal and add hardware cloth where a rodent is the problem. On Amazon it arrives through a reseller, often as a kit with gun, cleaner and copper mesh.

No technical data sheet from DuPont.
"Controls ... rats" is an effectiveness statement; the mechanism is a seal, and whether that wording carries a regulatory consequence is not decided here.

Documents on file

SDSPRO Pestblock for PRO Dispensing Gun, SDS 000001157045SDS only.
PAGEGreat Stuff PRO Pestblock product page

Sizes on Amazon, October 29, 2026 snapshot

Pack	Price	Ratings
12 x 20 oz2 duplicate listings at this size	$237.67	22	Amazon
complete kit, 20 oz can with gun, cleaner and gloveswith gun	$114.95	3450+ bought	Amazon
12 x 20 oz with gunwith gun	$285.79	14	Amazon
12 x 20 oz with gun and cleanerwith gun1 duplicate listing at this size	$298.79	3	Amazon

Not listed, and why

Products we know of that are not on this page

Loctite Tite Foam Big Gaps (up to 3 in on its sheet) and Great Stuff Big Gap Filler were not in the intake and are not listed.
Sprayman Let's Spray All multipurpose foam is on the brand store with its own sheet and was not in the September 7 intake, so it has no listing data and no record here yet.
Kraken Bond, Sprayman and Stanley pest and fire block cans also fill gaps and appear here with their own tags.

Questions and answers

Gap and crack foam questions, answered

Every answer comes from a maker’s data sheet, safety data sheet or manual, or from the records on this page, and says which.

Ask your own

Can I use expanding foam under a bathtub or shower base to support it? Buyer question

None of the six gap filler data sheets we read (Loctite, Kraken Bond, Stanley F905 and F905P, Sprayman and TYTAN Fill All) lists a tub or shower base among its uses, and none calls its foam load-bearing or structural. Stanley’s F905 and F905P and Sprayman’s sheet claim "mounting capacity and stability", and those three plus Kraken Bond Gaps & Cracks print a compression strength of 4.35 psi (30 kPa), with TYTAN Fill All at 5 PSI or more, but no sheet says what load the foam is meant to carry. Kraken Bond’s sheet for its ThermaFoam wide-spray can, a different product, states "Not intended for load-bearing or structural bonding applications". For how the tub or shower base itself should be supported, its maker’s installation instructions are the place to look, and none of our records holds them.
Can I reuse a half-used can of gap filler, and how long does an unopened can last? Buyer question

The straw and trigger can sheets that address it expect one session: Loctite’s Tite Foam sheet says "One-time use should be expected", and the Stanley F905 and Sprayman sheets ask you to use the whole can without stopping more than 5 minutes between sprays, because the foam dries in the applicator. Among the gap fillers, reuse is stated only for gun cans: DuPont’s page for Great Stuff PRO Gaps & Cracks says it is reusable for 30 days while left on the gun, and TYTAN’s Fill All sheet says to clean the applicator and valve with foam cleaner when a can is not used up. Unopened, Kraken Bond, Stanley F905 and F905P and Sprayman give a shelf life of 15 months, Loctite 18 months from the date of manufacture (15 months for its California can) and TYTAN Fill All 18 months from the manufacturing date, and DuPont’s safety data sheet for Great Stuff Gaps & Cracks gives a storage period of 18 months at 77 F. Loctite prints a BEST BY date on the bottom of the can.
Can I use gap filler foam around hot water or radiator pipes? Buyer question

Water pipes are a listed use, but no sheet gives a pipe temperature: Kraken Bond Gaps & Cracks, Stanley F905 and F905P and Sprayman all name insulating water pipes among their applications. What each sheet prints is a temperature range for the cured foam: -103 to 239 F for Kraken Bond and Stanley F905, -40 to 176 F for Stanley F905P, Sprayman and Loctite, and -200 to +240 F for TYTAN Fill All. Loctite is the one of the six gap filler sheets with a hot-surface warning: the foam "Should not be used in contact with chimneys, heater vents, steam pipes" or other areas with surface temperatures greater than 187 F, and the label precautions on the same sheet say dried foam "may be combustible" if exposed to flame or temperatures above 240 F. The running temperature of your pipe is not in any of these documents, so it is the figure to check against the range on the can; for copper, Loctite and TYTAN both list metal among the materials their foam bonds to.
How much gap will one can of gap filler fill? Buyer question

It depends on the bead, and only three of the six gap filler data sheets we read print a yield at all. Loctite says a 12 fl oz can extrudes a 3/8 in bead approximately 134.0 ft long, a figure it calls theoretical and for comparison; Kraken Bond prints a volumetric yield of 8 to 12 gal to ASTM C1536 for its 24 oz can; and TYTAN’s sheet for the 24 oz Fill All gives 502 ft of a 1/2 in wide bead in one row and 1463 ft of a 1/2 in bead in another, the second described as a theoretical calculation from free foaming under its internal method RB/024. Stanley’s F905 and F905P sheets call the foam high yield without a number, and Sprayman’s sheet prints none.
How wide a gap can a gaps and cracks foam fill before I need a big gap foam? Buyer question

Up to 1 inch on the two consumer cans that state a size, and up to 3 inches on two gun cans. Loctite’s Tite Foam Gaps & Cracks sheet says the foam fills gaps and cracks up to 1 in and gives a maximum joint width of 1.6 inches, and DuPont’s page for the Great Stuff Gaps & Cracks straw can says up to 1 inch (25mm). Great Stuff PRO Gaps & Cracks says up to 3 inch (76mm), and TYTAN Fill All says 1/4 in to 3 in, though the same TYTAN sheet calls gaps over 1.18 in (3 cm) not recommended, and gaps over 1.97 in (5 cm) unacceptable, when sealing open woodwork. Kraken Bond, Stanley F905 and F905P and Sprayman print no gap width, and Great Stuff Big Gap Filler is not a can the site tracks, so we hold no document for it.
What will expanding foam not stick to? Buyer question

Polyethylene, Teflon (PTFE) and silicone or siliconized surfaces, on all five of the gap filler data sheets we read that list exceptions: Loctite, Stanley F905 and F905P, Sprayman and TYTAN Fill All. Loctite adds "some plastic and rubber surfaces", the Stanley and Sprayman sheets add surfaces contaminated with oils, greases or mold release agents, and TYTAN adds polypropylene and polyamide. On the other side, TYTAN names glass, metal, masonry and plastic among the surfaces its foam bonds to and lists styrofoam among typical construction materials, and Loctite names wood, metal, stone, brick and PVC. The sixth sheet, Kraken Bond Gaps & Cracks, says only that the foam "Adheres to most building materials" and lists no exceptions.
Which gap filler has the best documentation? From the records

Loctite Tite Foam Gaps & Cracks and Kraken Bond Gaps & Cracks are the two with a dated data sheet that prints a measurable figure: Loctite gives a joint width and a bead yield, Kraken gives a volumetric yield with its test method. Stanley publishes dated sheets for the F905 and F905P but no gap or yield number.
Is a "spray foam insulation" straw can the same as an insulation kit? From the records

No. The cans on this page are sold by gap size and none publishes a coverage area. A kit is sold by board feet for open surfaces. The words on the label do not change what the can does.
Why is Great Stuff PRO listed on both this page and the fire block page? From the records

Because DuPont describes it both ways: a gap filler for openings up to 3 inches that is also "fireblock formulated." One product record, two category tags.
Do the prices here update? From the records

They are a dated snapshot from September 7, 2026, with a second read of the listings on September 8. Pack sizes on nine ASINs changed between those two days, so check the listing title before you buy.

Ask your own question

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