FastCoat Insulation Spray Foam Kit | Class A Fire Rated

FastCoat Insulation Spray Foam Kit | Class A Fire Rated

Q: What’s included in the FastCoat kit, and how much area does it cover?

Each FastCoat kit includes 12 cans of closed-cell polyurethane spray foam , an application gun , foam cleaner , and safety gear (goggles, gloves, and coverall). Under standard conditions, one kit covers about 240 sq ft at 1″ thickness (≈240 board feet). At 2″ thickness , the foam delivers an R-Value of 11.32 .

Q: What does “Class A Fire Rated” mean, and why does it matter for building codes and inspections?

“Class A Fire Rated” means the foam has passed ASTM E84 fire safety testing — the same test referenced by most U.S. building codes . Products with this rating are recognized as building code compliant , which means they can be used in permitted projects and will typically pass local inspections when applied correctly. FastCoat provides this certified level of safety and performance, ensuring your insulation project meets U.S. residential and commercial construction standards.

Q: Is FastCoat safe for indoor use?

Yes, when used according to instructions. The foam is CFC- and HFC-free , ASTM E84 Class A fire-rated , and becomes inert after full cure . ✅ Always wear a respirator, goggles, and gloves , and ensure ventilation during spraying and the first 12 hours of curing. 🚫 Do not spray into fully enclosed or unventilated cavities.

Q: How long does it take to cure, and when can I re-enter the area?

FastCoat cures in about 24 hours , with a cutting time around 40 minutes and skin time ≈ 5 minutes . You can safely re-enter after 12 hours of ventilation (24 hours for sensitive individuals). The foam is paintable once cured.

Q: What surfaces can I spray FastCoat on?

FastCoat adheres to wood, drywall, masonry, concrete, metal, and rigid foam boards . Surfaces must be clean, dry, and free of oil, dust, or rust . Ideal can temperature: 68 °F (20 °C) Working range: 41 °F – 86 °F (5 °C – 30 °C) Maintain correct spray distance ( 12 – 18 in walls, 6 – 8 in ceilings ) For outdoor use, protect cured foam from UV with paint or coating .

Q: What’s the R-value, temperature range, and lifespan of FastCoat?

FastCoat offers an R-Value of approximately 5.66 per inch , or R-11.32 at 2″ thickness . It performs reliably between –103 °F and 239 °F , and when protected from UV and moisture, provides an effective service life of 25–30 years . Once fully cured, it is water-resistant , but should not be used as a stand-alone waterproofing membrane.

Price

$349⁹⁹

$489⁹⁹ $349⁹⁹

Save 29%

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local_fire_department

Class A
Fire-Rated

Meets ASTM E84

thermostat

R-Value 11.32

@2 inch

format_paint

Paintable

After curing

schedule

Fast & Easy

Application

What's Included?

FREE Shipping

FREE
Foam Gun

FREE
Gun Cleaner

FREE
Safety Kit

See FastCoat in action

check_circle Thermal & Sound Insulation with Closed-Cell Formula check_circle Seal Out Drafts, Moisture & Pests, Keep Comfort In check_circle Easy DIY Application with Pro-Grade Results check_circle Perfect for Attics, Garages, Sheds & Trailers etc.

Key Features & Benefits

Professional-Grade Insulation: Provides high-performance closed-cell polyurethane foam in an easy-to-use DIY kit for efficient thermal and acoustic insulation.
High R-Value Performance: Offers an R-Value of 5.66 per inch (R-11.32 at 2"), ensuring excellent heat retention and year-round comfort.
Fire-Rated & Code Compliant: Certified Class A (ASTM E84) for flame safety and smoke control, meeting U.S. building code requirements for residential and commercial use.
Superior Adhesion: Bonds tightly to wood, drywall, concrete, metal, and foam boards, no mechanical fasteners needed.
Versatile Applications: Ideal for walls, ceilings, attics, garages, HVAC systems, trailers, vans, and pool areas.
High Coverage Yield: Each can covers up to 20 board feet at 1 inch thickness, offering efficient, consistent coverage for both DIY users and professionals.
Fast Curing Formula: Skins over in about 5 minutes, ready to trim after 40 minutes, and fully cures within 24 hours.
Closed-Cell Durability: Creates a dense, airtight barrier that resists air leaks, moisture, and sound transmission.
Moisture & Mold Resistant: Prevents condensation and mold growth; can be painted or coated for UV protection in outdoor use.
Long-Lasting Results: Maintains insulation performance for 25–30 years when properly applied and protected.
Eco-Friendly Composition: Free of CFCs and HFCs; safe for both indoor and outdoor environments.

FastCoat User Manual

FastCoat Insulation Spray Foam Kit | Class A Fire Rated

$259.99 $219.99

Watch How FastCoat Works

Complete Your Project Pair FastCoat with Specialty Foams

FastCoat covers the main insulation work. Add Wide Spray for tight spots, or choose targeted foams for gaps, pest-prone openings, and fire-blocking needs.

ThermaFoam Wide Spray Foam 6 Pack

For tight corners, seams, small gaps, and hard-to-reach spots.

$79.99 $99.99 Save 20%

Gaps & Cracks Filler Foam 2 Pack

For everyday sealing around cracks, joints, holes, and openings.

$19.99

Pest Block Foam 2 Pack

For pest-prone gaps around pipes, vents, utility lines, and entry points.

$20.99

Extreme Fire Block Foam 2 Pack

For sealing gaps, joints, and openings where fire-blocking foam is needed.

$36.99 $40 Save 7%

Insulate in 6 Simple Steps

Application Areas

Wall

Ceiling

Exterior Wall

Garage

HVAC Ductwork

Shed

Pool

Trailers

Van

Rated 5 Stars by Real DIYers

Great product

Spray foam was very easy to use and met all my expectations to seal in my 1832 home remodel. Coverage was excellent would recommend to anyone looking for a quality diy spray foam

Jeremy Montague

Verified Buyer

User-friendly

User-friendly, and it did the job. The gloves were a little cheap. Which I did not use it was easy to spray and easy to clean up. I think it's a good product for the money. Full video at (crabbycraig1) on tiktok and YouTube

Craig Redden

Verified Buyer

Worth every penny.

I did 2” on my basement walls, the difference is unbelievable. This product will pay for itself within a year or two tops. I’ll use this any chance I get. I did my 31x23 basement in about hour, any other way of insulating would’ve taken at least 3-4 hours. 6 out of 5 stars here!

Simon Walker

Verified Buyer

Great stuff for a good price!

I was in the market for a spray foam to insulate my hunting hut. After looking at several different product and reading the reviews I landed on kraken fastcoat. It was very easy to use and covered the square footage that it was intended for. Will be buying again to insulate another hunting hut.

Coulton Casteel

Verified Buyer

Awesome product

Worked perfectly, easy to use, easy to clean up. Highly recommended.

RICK BLOOM

Verified Buyer

Finally

After years of trying multiple methods of applying spray foam on small jobs, Kraken offers a solution that meets all of our needs. We now have more control applying and have eliminated the issue of wasted product and clogged hoses.

Kent Dodd

Verified Buyer

HVAC Ductwork

First time using the product. So easy to use. Went on great and sealed up my ductwork. Will definitely use again!

Joe Kraz

Verified Buyer

Perfect for small jobs

This product worked very well for me and did an excellent job. I spray foamed a small crawl space that was drafty in about an hour 👍🏼

Sky

Verified Buyer

Our Customers' DIY Projects

Compare FastCoat With Alternatives

See how FastCoat stands out among common insulation methods.

Feature	FastCoat	Two Component Kits	Glass Wool	Rock Wool
Air Sealing	✔	✔	✖	✖
Moisture Barrier	✔	✔	✖	✖
Easy Application	✔	✖	✖	✖
Long Durability	✔	✔	✖	✖

FAQs

What’s included in the FastCoat kit, and how much area does it cover?

Each FastCoat kit includes 12 cans of closed-cell polyurethane spray foam, an application gun, foam cleaner, and safety gear (goggles, gloves, and coverall). Under standard conditions, one kit covers about 240 sq ft at 1″ thickness (≈240 board feet). At 2″ thickness, the foam delivers an R-Value of 11.32.

What does “Class A Fire Rated” mean, and why does it matter for building codes and inspections?

“Class A Fire Rated” means the foam has passed ASTM E84 fire safety testing — the same test referenced by most U.S. building codes.

Products with this rating are recognized as building code compliant, which means they can be used in permitted projects and will typically pass local inspections when applied correctly.

FastCoat provides this certified level of safety and performance, ensuring your insulation project meets U.S. residential and commercial construction standards.

Is FastCoat safe for indoor use?

Yes, when used according to instructions. The foam is CFC- and HFC-free, ASTM E84 Class A fire-rated, and becomes inert after full cure.

✅ Always wear a respirator, goggles, and gloves, and ensure ventilation during spraying and the first 12 hours of curing.

🚫 Do not spray into fully enclosed or unventilated cavities.

How long does it take to cure, and when can I re-enter the area?

FastCoat cures in about 24 hours, with a cutting time around 40 minutes and skin time ≈ 5 minutes. You can safely re-enter after 12 hours of ventilation (24 hours for sensitive individuals). The foam is paintable once cured.

What surfaces can I spray FastCoat on?

FastCoat adheres to wood, drywall, masonry, concrete, metal, and rigid foam boards. Surfaces must be clean, dry, and free of oil, dust, or rust.

Ideal can temperature: 68 °F (20 °C)
Working range: 41 °F – 86 °F (5 °C – 30 °C)
Maintain correct spray distance (12 – 18 in walls, 6 – 8 in ceilings)
For outdoor use, protect cured foam from UV with paint or coating.

What’s the R-value, temperature range, and lifespan of FastCoat?

FastCoat offers an R-Value of approximately 5.66 per inch, or R-11.32 at 2″ thickness.

It performs reliably between –103 °F and 239 °F, and when protected from UV and moisture, provides an effective service life of 25–30 years.

Once fully cured, it is water-resistant, but should not be used as a stand-alone waterproofing membrane.

FastCoat Insulation Spray Foam Kit | Class A Fire Rated

FastCoat Insulation Spray Foam Kit | Class A Fire Rated