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GREAT STUFFGaps & Cracks 20 oz Insulating Foam Sealant

GREAT STUFFGaps & Cracks 20 oz Insulating Foam Sealant

Q: What is the R-rating on this?

Hi Dave! The initial R-value is 4.3 per inch and the aged R-value is 3.7. Good luck with your project!

Q: Is closed or open cell foam?

Hi Meggi, This is a closed cell foam.

Q: can this be used to fill holes between dry wall and hardwood, then covered with molding? Will the foam crack if a nail goes into it?

This is the perfect place to use this foam! I did this in my own home recently when we were installing new baseboard. You can apply the foam in the gap, and like others said be careful about overfilling because it does expand quite a lot. I also highly recommend buying our Cleaner / Amazon # B0002YWRG4 because you can spray this on a paper towel and clean up foam when it's still wet. It's a useful product for any project using GREAT STUFF foams. Don't worry if it puffs out too much, you can cut, sand, caulk or paint this foam once fully cured/dry. The foam will not crack if you nail through it but it also is not structural so you'll need to make sure you're nailing the molding into the wall. Good luck with your project!

Q: is it safe around a hot baseboard heater pipe coming into the room through the floor?? thats where mice get into the rooms from under the floor

I looked at the can and it doesn't really say. The stuff before it cures is full of flammable gas but it doesn't say anything about keeping the cured material from heat. Now, that being said, (I'm putting on my professional chemist hat) Great Stuff is a polyurethane. And polyurethanes are flammable. So, I would be concerned if the area got very hot, say over 150F. Hope this helps.

4.5/5

Product ID: 81431292

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Details

Material
foam
Brand
GREAT STUFF
Style
Compact
Item weight
0.4 Kilograms
Item dimensions L x W x H
7 x 7 x 24.1

⏳Cures fast for quick, durable sealing

🧱Expands to fill gaps up to 1 inch

❄️Insulates against drafts & energy loss

Frequently Bought Together

Great Stuff 157911 Insulating Foam Sealant, 20 Ounce, Ivory

Steel Wool Mice Control, 2 Pack 3" x10 Ft Hole Filler, Gap Blocker, Barrier, Protect Against Animals in Holes Holes, Siding, Pipeline, Vents for Garden, House, Garage

Great Stuff 99108824 Smart Dispenser Gaps & Cracks, Cream, 12 Ounce

Description

🛠️ Seal smart, save energy, and never let a crack cramp your style!

FAST ACTING FOAM - Cures quickly to create a durable, long-lasting seal that stands up to the elements and time.
COMPACT READY TO USE - Designed in a sleek, easy-to-handle 20 oz can for precise application without the mess.
ENERGY EFFICIENCY UPGRADE - Provides superior insulation to reduce drafts and lower your energy bills—because comfort is non-negotiable.
MULTICOLOR FOR VERSATILITY - Blends seamlessly with various surfaces, making your repairs discreet yet effective.
SEAL EVERY CRACK LIKE A PRO - Expands on contact to fill gaps and cracks up to 1 inch wide, ensuring no space is left behind.

GREAT STUFF Gaps & Cracks 20 oz Insulating Foam Sealant is a fast-curing, expanding foam designed to fill and insulate gaps up to 1 inch wide. Its compact, multicolor design ensures easy application and discreet sealing, helping reduce energy loss and improve home comfort.

Specifications

Manufacturer	Great Stuff
Part number	157911
Item Weight	400 g
Product Dimensions	6.99 x 6.99 x 24.13 cm; 400 g
Item model number	157911
Colour	Multicolor
Style	Compact
Material	foam
Pattern	Sealant
Item Package Quantity	1
Special Features	Insulated
Included components	Expanding foam sealant
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

What is the R-rating on this?

Is closed or open cell foam?

can this be used to fill holes between dry wall and hardwood, then covered with molding? Will the foam crack if a nail goes into it?

is it safe around a hot baseboard heater pipe coming into the room through the floor?? thats where mice get into the rooms from under the floor

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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€ 87.59

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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