GREAT STUFF Gaps & Cracks 20 oz Insulating Foam Sealant A quick, simple way to create an airtight, water resistant seal Fills, seals, and insulates gaps up to 1 inch, lowering your energy bills by keeping your heat or air conditioning on the INSIDE! Cures rigid and can be trimmed, sanded, stained, and painted Exceptional adhesion to building materials on both interior & exterior of your home Easy to use straw applicator, foam expands to take the shape of cracks & voids