At a Glance

Dry Time: 60-minute

Mold Resistant

Use Location: Indoor/Outdoor

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GREAT STUFF Gaps and Cracks 12-oz Straw Indoor/Outdoor Spray Foam Insulation Canister

Name: GREAT STUFF Gaps and Cracks 12-oz Straw Indoor/Outdoor Spray Foam Insulation Canister
Brand: GREAT STUFF
SKU: 3012216
Price: 4.48 USD
Availability: InStock
Rating: 4.5 (3514 reviews)

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4.5

3514

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GREAT STUFF™ Gaps and Cracks Insulating Foam Sealant is a ready-to-use, minimal-expansion insulating foam sealant that expands up to 1 inch to take the shape of gaps, creating a long-lasting, airtight and water-resistant seal around plumbing and electrical, in basements, attics, and more.

Expands to fill, seal, and insulate gaps up to 1 inch (25mm)
Forms a long-lasting, airtight, weather-resistant seal
Helps keep insects, moisture/condensation and allergens out
Adheres to wood, metal, masonry, glass and most plastics
Interior/exterior use
Tack-free in 5-15 minutes; trimmable in one hour
Paintable, stainable and sandable
UL classified

General
Dry Color	Cream	Insulation Type	Closed cell
Series Name	Gaps and Cracks	Net Contents (oz.)	12
Type	Canister	Dry Time	60-minute
Use Location	Indoor/Outdoor	Dispenser Type	Straw

Features
Fire Resistant	No	Sound Barrier	No
Formaldehyde Free	Yes	Vapor Retardant	Yes
Mold Resistant	Yes	Water Resistant	Yes
Paintable/Stainable	Paintable/Stainable

Certifications
CA Residents: Prop 65 Warning(s)	No	GREENGUARD Gold Certified	No
ENERGY STAR Certified	No

Warranty
Warranty	None

Compatibility
For Use in Basements	Yes	For Use in Floors	No
For Use in Crawlspaces	Yes	For Use in Garage Doors	No
For Use on Plastic	Yes	For Use in Masonry	Yes
For Use on Metal	Yes	For Use in Plumbing	Yes
For Use on Wood	Yes	For Use in Vents	Yes
For Use in Ceilings	Yes	For Use in Walls	Yes
For Use on Insulation	Yes	For Use in Windows	No
For Use in Attics	Yes	Fits 2 x 4 Walls	Yes
For Use in Doors	No	Fits 2 x 6 Walls	Yes
For Use in Duct	Yes	For Use on Glass	Yes
For Use in Electrical	Yes

Dimensions
R-Value per Inch	3.7	Maximum R-Value	3.7

Miscellaneous
UNSPSC	30141500

Check out the Best Selling Spray Foam Insulation on Lowes.com

Review

4.5 out of 5

3514 Reviews

88% Recommend this product

Ratings may include incentivized customer reviews.

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+ 30

What Customers Are Saying

Customers overwhelmingly praise this spray foam for its exceptional ability to seal gaps, cracks, and drafts around pipes, windows, and crawl spaces. The powerful expansion and ease of application are frequently highlighted as standout features for reaching hard-to-access areas. Most note the product is messy and sticky, requiring gloves and cleanup with acetone or specialized wipes. Many report the nozzle clogs after first use, making it single-use only, though some find workarounds. Despite these drawbacks, the vast majority consider the sealing performance outstanding and well worth the trade-offs.

Customer review summary generated by AI, including incentivized reviews.

3514 Customer Reviews

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Fills it!

Fills gaps and cracks. Expands a lot. If you need less expansion use window and door version. Other brands are also better for cold temperatures

HDIYJuly 10, 2026
Verified Purchaser

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Time for a change in curbside pickups!

Would Recommend

There wasn't an issue with my order, and by no means am I complaining about folks being tired, and hot, because it is excruciatingly hot outside today. It is 07:34 pm. I just pulled from under the shelter at the Lowes loading area. Two young men loaded my order on my truck for me, which was great, but when I asked if they could tie it down with some string or something, they cut me a piece of twine, and reached it to me,to tie it down myself. Of course, I completely understand that it is probab...

LynnJuly 8, 2026
Verified Purchaser

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Too big too fast!

I bought this to seal some minimal open spaces form a window A/C Unit. The foam came out too much and too fast. It was hard to use. We ended up using clear caulk instead.

roctimusprimeJuly 8, 2026
Verified Purchaser

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GREAT STUFF Gaps and Cracks 12-oz Straw Indoor/Outdoor Spray Foam Insulation Canister

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