Closed-cell spray foam kit
Seal the gap. Stop the draft.
Window frames, wall cracks, garage doors, rim joists. 12 cans, a gun and cleaner in one box. Do it yourself this weekend.
What people use it for
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Window and door framesFill the gap around the frame. -
Cracks and wall holesSeal it before air and water get in. -
Garage doorsFoam the back of each panel. -
Stud walls1 to 2 inches between the studs.
The specs
The numbers, straight.
What you need to know before you buy.
- Foam type
- Closed-cell polyurethaneBlocks air and moisture
- R-value
- R-3.70 per inchR-7.40 at 2 inches
- Coverage
- About 240 sq ft per kitAt 1 inch thick
- Fire rating
- Class AASTM E84 flame spread
- Can size
- 31.7 oz (900 g)12 cans per kit
- Sticks to
- Wood, metal, concrete, drywallClean, dust-free surface
- Full cure
- About 6 hoursVaries with temperature and humidity
Watch it
30 seconds. One wall.
A garage wall, from bare studs to sealed.
- Screw the can onto the gunHand-tight. No tools.
- Spray thin passesThe foam grows into the gap. Don't overfill.
- Let it cure, then trimCut off the excess once it's hard.
Buyer reviews
From people who did the job.
4.8/5 from 5,000+ DIYers
Metal building★★★★★
Passed inspection
"Used this on a commercial project requiring ASTM E84 compliance. Passed inspection with flying colors and stuck firmly to both concrete and metal."
Robert M.· Verified buyer
Window frames★★★★★
Basement is warmer
“I used this kit around several basement pipe penetrations and old window frames. The foam expanded evenly and sealed every gap. Our basement feels noticeably warmer now. Easy to use even for a first-time DIYer.”
Armstrong Montgomery· Verified buyer
Unboxing★★★★★
Clear instructions
”I’ve zero DIY construction experience, but the step-by-step guide made spraying straightforward. The foam expands at a steady rate so I never overfilled cracks accidentally. Shipping arrived well wrapped with zero leaks.“
Dominic Nico· Verified buyer
First project★★★★★
Easier than I expected
“As someone with very little home improvement experience, I was nervous about using a foam kit. Turns out it was much easier than expected. The included accessories made the process simple and stress-free.”
Jason terry· Verified buyer
What's in the box
Foam, gun, cleaner. One box.
No rental rig. No second trip to the hardware store.
- 12× Spray foam cans31.7 oz each
- 1× Spray gunScrews onto every can
- 1× Foam cleanerCleans the gun after the job
- 1× Safety kitGloves, goggles and coverall
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30-day money backNot right for your job? Send it back.
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Free shippingCans packed so they arrive intact.
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Real supportAsk us about your job before you spray.
Measure once. Buy once.
Pick your kit. More kits, lower price per can.
Straight answers.
How much does one kit cover?
About 240 sq ft at 1 inch thick. Use the calculator above for your job.
Never used spray foam. Can I do this?
Yes. The gun, cleaner and safety gear are in the box. Follow the steps on the can.
What does it stick to?
Wood, metal, concrete and most common building materials. Surfaces should be clean and dry.
How long until it cures?
Tack-free quickly. Full cure in about 6 hours, depending on temperature and humidity.
Is it fire rated?
Yes. Class A, zero flame spread.
What if it's not right for my job?
Send it back within 30 days for your money back.