Great Stuff Gaps and Cracks Insulating Foam Sealant,12 Ounce – Case of 12
Original price was: $47.99.$40.99Current price is: $40.99.
Price: $47.99 - $40.99
(as of Aug 07, 2025 00:26:04 UTC – Details)
GREAT STUFF? Gaps & Cracks is a polyurethane-based insulating foam sealant that fills, air-seals and insulates small gaps (less than 1 inch) inside or out. But you probably guessed as much from the name. What you might not have guessed is how easy it is to use (thanks to the straw applicator) or how it expands to take the shape of cracks and voids to form a durable, airtight, and water-resistant bond that eliminates unwanted airflow and helps reduce condensation.
Forms a permanent weather-tight seal to minimize drafts and insect infestation
Exceptional adhesion to building materials
Interior or exterior use
Tack free in 6 minutes; Trims in 30 minutes
Foam elasticity allows for movement/shifting within a structure
Customers say
Customers find the sealant to be a fantastic product that works great and fills cracks very well, with one customer specifically noting its effectiveness in sealing gaps between foam board insulation. They appreciate its ease of application, good price, and durability, with one mentioning that all cans and lids arrived intact. The stickiness receives mixed feedback, with several customers reporting issues with adhesion.
8 reviews for Great Stuff Gaps and Cracks Insulating Foam Sealant,12 Ounce – Case of 12
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Original price was: $47.99.$40.99Current price is: $40.99.
THOMAS FOX –
Great stuff is truly great
Great stuff is a good product. Iâve used it for a long time and Construction and I got this case was a good deal good price and if youâre trying to cover up gaps and holes, this is the product you use
KS –
Great buy!
This worked great on my porch to fill in cracks where birds were building nests. I like that it discolors after being up for a while which blended in with my brown cabin.
Kris Miller –
Great stuff
Seals great, expands as it should, I had no problem with adhesion, a great price for case of 12 I have an older home used in the basement around the foundation and filled holes and cracks it made a huge difference knocking out drafts and keeping out bugs and mice!
Mandy –
Use it all the time
I don’t just normally use great stuff I create stage props with it and this time I made a giant popcorn string is absolutely stunning on stage. Easy to apply easy to use you can create all different kinds of stuff with great stuff will not stick to plastic which is a good thing so that you can remove your project without messing it up
Martin L. Mathews –
Great product
I love this product, just wish that they provided a better experience for cans that are not used 100%. Typically whatever you open, gets pitched or you use it. I wish they developed something that cost them .25 cents or less a can. I would pay for it to save more 1/2 empty cans.
Kevin Foshee –
Works on most surfaces
Great crack filler , very sticky ,blends well
Mark –
Crack filler
Why did you pick this product vs others?:I use this all the time itâs greatÂ
Courtney Hadden –
Variety of uses
I have trying to find a good gap filler that would work for a variety of projects. Not only is this the only one that is true to it’s word on ability but it is the only one that fits my craft side of home improvement as well, it is the biggest bang for the buck so to speak.