Dow Great Stuff Pro Gaps & Cracks 24oz Gun Foam 341557

by Dow Chemical

Product Description

GREAT STUFF PRO Gaps & Cracks Insulating Foam Sealant is a minimal-expanding, single component polyurethane foam sealant for general purpose building envelope air sealing. As the first foam sealant to be recognized as a fireblock, GREAT STUFF PRO Gaps & Cracks resists the free passage of flames to other areas of the building through concealed spaces. Identifiable orange color. Designed to fill gaps up to 3" (75 mm), GREAT STUFF PRO Gaps & Cracks Insulating Foam Sealant expands to take the shape of cracks and voids, forming a permanent, airtight and water-resistant bond to vinyl, wood and metal surfaces.Once cured, it remains soft and flexible, permitting natural expansion and contraction of surrounding surfaces. GREAT STUFF PROTM Gaps & Cracks helps prevent drafts and repel water, helping enhance energy efficiency and improve occupant comfort.

Product Details

• Shipping Weight: 1.2 pounds (View shipping rates and policies)
• ASIN: B0013WME6C
• Item model number: 341557
• Average Customer Review: 4.9 out of 5 stars  See all reviews (8 customer reviews)
• Amazon Best Sellers Rank: #1,376 in Home Improvement (See Top 100 in Home Improvement)
  • #3 in Home Improvement > Building Supplies > Heating & Cooling > Weatherproofing > Weather Stripping

Customer Reviews

Most Helpful Customer Reviews

16 of 18 people found the following review helpful:

5.0 out of 5 stars Must Have for Big Projects, October 24, 2009

By 

Seth Zilverberg (South Dakota) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Dow Great Stuff Pro Gaps & Cracks 24oz Gun Foam 341557 (Misc.)

Don't bother with the plastic straw cans if you need more than a couple. Great Stuff Pro with the Pro Gun 13 (or any Pro Gun) gives much better control over the foam bead. When the trigger is released the foam stops - no more foam oozing out after you want to stop. One can goes a LONG way.

6 of 6 people found the following review helpful:

5.0 out of 5 stars Really Works, September 19, 2011

By 

thorvald (USA) - See all my reviews
(VINE VOICE)   

Amazon Verified Purchase

This review is from: Dow Great Stuff Pro Gaps & Cracks 24oz Gun Foam 341557 (Misc.)

Great Stuff foam really works. I pulled mouse-filled fiberglass insulation out of my basement today and used the Great Stuff foam to seal the entry points. I'm ordering more to complete the job of insulating the upper perimeter of the basement. It hardens very completely--I don't think mice could chew through it. The foam gets into cracks and holes batting insulation won't. It filled some massive gaps very effectively--do those when the can is new and squirting most enthusiastically. The foam is easy to control and apply only where you want it.

These cans go a long way; good bargain for the price, good value for the quantity. The applicator gun you need to buy to use these large cans seems a bit pricey (about $35) but is necessary and works well. None of it was very heavy to use. The applicator gun did not clog though sometimes I had such a gob of orange hardening foam on the end I couldn't see how it could possibly continue to work, but it did.

Downsides--the applicator gun doesn't extend very far so it was hard to reach into narrow spaces. The can itself sticks out awkwardly and has the same disadvantage. The can will spray upright or on its side, but not upside down, so it was hard to get into some areas by the ceiling between the joists.

The whole process is messy and sticky. Wear disposable clothing, if you can, gloves and goggles.

5 of 6 people found the following review helpful:

4.0 out of 5 stars I love spray foam., May 5, 2010

By 

Stuff Buyer "Stuff Buyer" (VA, USA) - See all my reviews

Amazon Verified Purchase

This review is from: Dow Great Stuff Pro Gaps & Cracks 24oz Gun Foam 341557 (Misc.)

I love spray foam.
This, combined with the pro handle make spray foaming so much neater and more accurate. You can also easily stop mid-can, which is great.