At a Glance

Dry Time: 60-minute

Mold Resistant

Use Location: Indoor/Outdoor

50k+ bought last week

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
Rating: 4.4 (2789 reviews)

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4.4

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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

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

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Review

4.4 out of 5

2789 Reviews

86% Recommend this product

Ratings may include incentivized customer reviews.

+ 23 images

What Customers Are Saying

This foam sealant effectively fills and seals gaps, cracks, and holes, expanding to create a durable, insulating barrier. While it can be messy and challenging to control at times, users generally find it easy to apply. The main limitation is that once opened, the entire can must be used in a single session, as the foam will harden in the applicator and render the remaining product unusable.

Customer review summary generated by AI, including incentivized reviews.

2789 Customer Reviews

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Easy to use

Would Recommend

Easy to use, worked great to seal up gaps the window installer missed.

Jad1February 25, 2026
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If you plan on using this product, make sure you h

Would Recommend

Excellent product for the price

Big GFebruary 25, 2026
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Works as expected

Would Recommend

Followed the instructions on the can and was happy with the results.

February 24, 2026
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Good stuff inexpensive but works great crack filer

Would Recommend

A little messy but to be expected def wear gloves for sure

BurnsFebruary 24, 2026
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Easy to use

Worked great for what I needed. Easy to use. Filled in the gaps perfectly

AJBollFebruary 24, 2026
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Excelente

Would Recommend

Bueno

Muy buenoFebruary 24, 2026
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Promotion

Amazing customer service

SuzyqFebruary 24, 2026
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