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See more product details Seal any openings both indoor and outdoors. This multipurpose, cream-colored sealant blends into natural surfaces, can be painted and sanded, and expands up to 1-inch. Tack-free in 5-15 minutes and trimmable in one hour, this sealant adheres to wood, metal, masonry, glass and most plastics. By properly insulating and air sealing your home, you can help lower heating and cooling costs by up to 30%. GREAT STUFF Gaps & Cracks 20 oz Insulating Foam Sealant 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 (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.




