Comparison · read from the product records

Akfix vs Stanley: ThermCoat and SuperCoat Compared

Both 24-can kits claim 480 board feet at 1 inch and R-5.66 per inch. ThermCoat publishes the fuller performance sheet; SuperCoat publishes the cleaner document trail. On the latest readings ThermCoat was the cheaper of the two at $329.99 against $389.95.

Research by Best Spray Foam research desk · Published · Updated

The short answer

Which one, and when neither

  1. ThermCoat, if the published performance rows and the store reviews decide it

    Akfix puts both ASTM E84/UL 723 indices at 2 inches and a density of 0.94 plus or minus 0.06 lb/ft3 under ASTM D1622 on its sheet. Stanley publishes neither row. That stronger visible record is why ThermCoat sits #2 in our kit order and SuperCoat sits #3. Its own store is small but clean: 32 of the 34 reviews akfixstore.com serves are tied to an order in that shop, 94%, at a 4.65 average.

  2. SuperCoat, if document control decides it

    Stanley publishes a data sheet dated March 25, 2025, revision 1, and a safety data sheet on the same documents page, and it sells through retailers rather than a store of its own, so there is no brand-store review base to read either way. On price, ThermCoat was the cheaper of the two at $329.99 against $389.95, $0.51 an ounce for ThermCoat against $0.60 for SuperCoat.

  3. Neither, if a claimed board foot is your whole material takeoff

    The 480-board-foot figures are maker claims at 1 inch, not measurements from your wall. Substrate temperature, spray distance, overlap, wind and trimming change installed yield. Buy with a waste margin and follow the exact label and safety sheet; neither comparison score is a hands-on foam test.

The two kits

Same box size, separate records

Side by side

The claim, the paper and the price

A green cell means one record is stronger on that exact row. It does not turn a document score, a marketplace average or a maker yield into a hands-on performance test.

RowAkfix ThermCoat 24-PackStanley F990P SuperCoat 24-Pack Kit
Pack and claimed yield 24 x 27.1 oz, 650.4 oz net · 480 board feet at 1 inData sheet with no date or revision printed: 20 board feet at 1 inch per can 24 x 27.1 oz, 650.4 oz net · 480 board feet at 1 inData sheet, rev. 1, 25.03.2025: up to 20 board feet at 1 inch per can
R-value as published R-5.66 per in5.66 an inch on the application guide R-5.66 per in5.66 an inch on the coverage chart
Technical data sheet Dated and revision-controlled Published, with an open question · ThermCoat fire rated data sheet, USA English · checked September 7, 2026ThermCoat fire rated data sheet, USA English This row Published by the maker or seller · F990P SuperCoat technical data sheet, rev. 1, March 25, 2025 · checked September 7, 2026F990P SuperCoat technical data sheet, rev. 1, 25.03.2025
Safety data sheet Public before purchase Seen by our desk; the seller does not publish it · ThermCoat safety data sheet, sent by customer support · checked September 12, 2026ThermCoat safety data sheet, sent by customer support This row Published by the maker or seller · F990P SuperCoat safety data sheet, issue date July 17, 2023 · checked September 7, 2026F990P SuperCoat safety data sheet, issue date 17.07.2023
Fire evidence a buyer can read Indices published on the product sheet This row ASTM E84 and UL 723 at a 2-inch thickness: flame spread 15 or less, smoke developed 40 or less, stated as Class A The properties table on the same sheet states a fire class of B3 under DIN 4102-1, which is the lowest of that standard’s classes, beside an ASTM E84 Class A note lower down. The two point in opposite directions and we have asked the manufacturer which applies to the product sold in the United States.ThermCoat fire rated data sheet, USA English Carries the brand name and both surface-burning indices, and matches the product soldF990P SuperCoat fire test report, sent by customer support
What Class A asks for Flame spread 0 to 25 and smoke developed 0 to 450ASTM E84 and UL 723 class limits Flame spread 0 to 25 and smoke developed 0 to 450ASTM E84 and UL 723 class limits
Density Product-specific figure published This row Specific gravity 0.94 plus or minus 0.06 lb/ft3 under ASTM D1622, printed on this sheet. The sheet’s label is specific gravity, which has no unit; lb/ft3 is a density unit and ASTM D1622 is the density test for rigid cellular plastics, so the line is read as a density. It sits inside the 0.5 to 2.0 lb/ft3 the rim-joist exception needs, as the maker’s figure for cured foam rather than an installed density anyone has verified. It is printed on this sheet alone: the FastCoat, SprayCoat and SuperCoat sheets carry no density line and do not score it. DAP Wall & Cavity prints one of its own, to the same method, and is a can rather than a kit so it is not scored here.Research criterion B5 No density or specific gravity on this sheet. The 0.94 plus or minus 0.06 lb/ft3 under ASTM D1622 in this set is printed on the Akfix ThermCoat sheet only and is not transferred here: the two sheets share the conductivity, R-value, compression and yield lines, and this one prints a tack-free time of 5 plus or minus 2 minutes under ASTM C1620 where the Akfix sheet prints a tack-free time of 4, and nothing from either maker says the two cans hold one formulation. Read 2026-09-14.Research criterion B5
Same-size 24-can price $59.96 less for the same-size kit This row $329.99 · $0.51 per oz · $0.69 per claimed board ftbrand store, October 29, 2026 $389.95 · $0.60 per oz · $0.81 per claimed board ftWalmart, October 29, 2026
Amazon rating snapshot 4.2 from 585 ratings · 12% one starAmazon, September 12, 2026 4.4 from 310 ratings · 6% one starAmazon, October 27, 2026
The maker’s own store reviews A larger share of the reviews is tied to an order in that shop 32 of 34 tied to an order, 94% · 4.65 averageakfixstore.com, read September 12, 2026 Stanley sells through retailers rather than direct, so there is no brand store to read.Store review record
Best Spray Foam research score More documentation and traceability points This row 83.7 / 100 · #2Published research rubric 79.8 / 100 · #3Published research rubric

Amazon stars and counts are a dated marketplace snapshot, not ratings created by Best Spray Foam. Price and availability can change; confirm the listing before buying.

Records and listings

Read the file before the checkout

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

The two brands

Akfix and Stanley, shelf by shelf

The kits above are one shelf. This is the rest of each brand's spray foam as its own site listed it on October 18, 2026, each product read through its record on this site, with its place on the category page it is ranked in.

ShelfAkfixStanley
Insulation kit sprayed from cans
  • Stanley F990P SuperCoat 24-Pack Kit #3 in the kit ranking, compared above
  • Thermal & Sound Insulation Fire Rated Spray Foam Not tracked on this site · Stanley site, listed beside the F990P kit
Two-canister insulation kit None on its site
Pest block foam
  • Stanley F993 Pest Block #3 of 5 straw cans on the pest block page · 3 of 4 confirmed
  • F993P Pest Block Pro, gun can Not tracked on this site · Stanley site
Gap and crack filler
Window and door foam None on its site
Fire block foam
Black landscape foam
  • Stanley F903 Black Foam #1 of 5 straw cans on the black and landscape page · 4 of 4 confirmed
  • F903P Black Foam Pro, gun can Not tracked on this site · Stanley site
Wide spray can None on its site
  • F995 Wide Foam Not tracked on this site · Stanley site, marked new
Fence post foam None on its site
  • F996 Post Fix Montage Foam Not tracked on this site · Stanley site

Also sold, and not tracked on this site: Akfix, the 960P adhesive gun foam, silicones, polyurethane sealants, construction adhesives, glues and automotive sprays; Stanley, the FA 190P and FA 192P adhesive foams, silicones, caulks, construction adhesives and glues.

What would change this

The missing piece, named

  • A dated, revision-controlled ThermCoat sheet that resolves the DIN 4102-1 B3 line beside its US Class A statement would remove its largest paperwork question.
  • A public SuperCoat fire result and a product-specific density would close the two performance rows ThermCoat currently publishes and Stanley does not.

Asked about this pair

Questions people type, answered from the records

Do ThermCoat and SuperCoat claim the same coverage?

Yes. Both makers state up to 20 board feet per can at 1 inch, or 480 board feet for the 24-can kit. That is a published claim under stated application conditions, not a promise of installed yield on every job.

Which kit was cheaper in the same 24-can size?

On the latest readings, ThermCoat at $329.99 at the Akfix store against SuperCoat at $389.95 at Walmart, both read on October 29, 2026. ThermCoat was $59.96 less for the same 24-can kit, which is $0.51 an ounce for ThermCoat against $0.60 for SuperCoat. On the September 7, 2026 prices the rubric scores, SuperCoat was the cheaper. That is why every price on this site carries its date. Prices here are dated snapshots, so confirm the seller before you pay.

Which kit has the better fire paperwork?

ThermCoat has the better public fire row because its own sheet prints ASTM E84 and UL 723 at 2 inches with both indices. The same sheet also prints DIN 4102-1 class B3, a separate German system, and Akfix has not resolved why both statements appear. SuperCoat has a matching fire report that our desk has seen, but Stanley does not publish the result on its data sheet.

Are the Amazon stars part of the Best Spray Foam score?

Amazon feedback is one input, clearly separated from the research score. On September 12, 2026, ThermCoat showed 4.2 from 585 ratings and SuperCoat 4.4 from 298. The site score also weighs documents, claim consistency, kit contents, price and traceability; it is not a star rating for installed performance.

What else do Akfix and Stanley sell in spray foam?

Both sell a pest block foam, a gap filler in straw and gun cans, a fire block foam and a black foam, each with a record on this site. Stanley also lists three window and door foams with records here, a two-canister SuperCoat kit, F994C, read on our two-component page, and an F993P pest block gun can, an F903P black foam gun can, an F995 wide foam and an F996 post fix foam that this site does not track yet. Akfix’s US store listed no window and door foam, no wide spray can and no fence post foam when we read both on October 18, 2026. Neither brand’s adhesive foams, silicones and glues are tracked here.

How this page is built

Nothing here was sprayed by us

This comparison reads what each maker publishes and what the listings show; it is not a hands-on test. Every figure in the tables comes from the product records behind the full record pages, with the document it came from and the date we read it, and it changes on this page the day a record is re-read. A side is marked ahead only when both were measured the same way, or when only one maker put the figure in writing. The rules behind the order on the category pages are in the methodology.

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