Akfix Thermcoat Spray Foam Insulation Kit (24 Pack) - Closed Cell

In this review of the Akfix Thermcoat Spray Foam Insulation Kit, the bottom line is clear: this 24-pack is aimed at DIYers and professionals who need a high-adhesion, closed cell polyurethane spray foam for thermal and acoustic sealing across multiple surfaces. The biggest reason to buy is the kit's combination of a high R-value for closed cell foam and a formula designed to bond to common building materials while remaining paintable. It is presented as a practical solution for insulating wall cavities, attics and small repairs when a gun and cleaner are already on hand.

Key Features

• Closed cell R-value: Offers an R-value of 5.66 per inch, which provides strong thermal resistance for tighter spaces and thin layers.
• Excellent adhesion: The polyurethane formula bonds well to many substrates so sealant stays in place on drywall, wood, concrete and masonry.
• Two nozzles included: Nozzle A for vertical wedged spray and Nozzle B for ceiling applications help control bead shape for different orientations.
• Quick curing: Strong chemical bonds form fast and full curing occurs in about 24 hours for dependable performance.
• Paintable finish: Once cured the foam accepts paint, simplifying finishing work after filling gaps or insulating surfaces.
• Class-A fire rated: Tested for enhanced fire resistance, adding a safety benefit for residential and commercial use.

Who It's For

The kit is best suited for homeowners tackling DIY insulation projects, handymen, and contractors who need a ready supply of closed cell spray foam for patching, sealing and insulating zones like attics, wall cavities and rim joists. It is particularly useful when a paintable, durable foam is preferred and when adhesion to diverse materials such as concrete, wood or PVC matters.

Those who should look elsewhere include users who require an applicator gun and cleaner included in the kit, or projects needing very large continuous coverage where pro rigged application systems would be more efficient. Also, jobs exposed to direct, prolonged UV should plan for surface protection as color can be affected.

Pros & Cons

Pros

• High R-value closed cell foam gives good thermal resistance in thin applications.
• Paintable and adheres to a wide range of building materials for flexible use.
• Includes two nozzle options to improve control for vertical or ceiling work.

Cons

• Coverage and adhesion reports are mixed, so some users may find actual yield or stick less than expected.
• Gun and cleaner are not included, so additional tools are required to apply optimally.

Specifications

Product type	Closed cell expanding polyurethane foam
Pack size	24 cans
Net volume per can	27.1 oz
Coverage	Approx 480 board ft per pack (manufacturer claim)
R-value	5.66 (closed cell)
Nozzle options	Nozzle A for vertical, Nozzle B for ceiling
Included accessories	No gun or cleaner included

Our Verdict

The Akfix Thermcoat Spray Foam Insulation Kit is a practical, paintable closed cell foam option for DIYers and tradespeople who need a high R-value sealant that bonds to many materials. It represents good value when you already have application tools and want reliable thermal and acoustic performance, though buyers should be aware that coverage and adhesion can vary and a separate applicator gun is required.

Frequently Asked Questions

Is the foam paintable?
Yes. Once fully cured (about 24 hours) the foam accepts paint for finishing.

Does the kit include an applicator gun?
No. The kit does not include a gun or cleaner, so plan to use a compatible applicator for resumed work.

What surfaces will it adhere to?
The formula is designed to bond to drywall, wood, concrete, brick, metal, PVC and similar common building materials.