Product Review
GREAT STUFF Gaps & Cracks is a polyurethane-based insulating foam sealant that fills, air-seals and insulates small gaps (up to 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 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.
- Must be used with GREAT STUFF PRO Series Dispensing Gun, sold separately.Comes in a can that’s reusable for up to 30 days, minimizing waste (cans of straw-applied gaps & cracks can be used one time only)
- Recognized as a fireblock; inhibits the spread of smoke & flames through concealed spaces
- Minimal expanding for general purpose building envelope air sealing
- Fills gaps up to 3" and expands to take the shape of cracks and voids
- Forms permanent, airtight and water-resistant bond to vinyl, wood and metal surfaces
