Great Stuff Pro Gaps and Cracks is great for filling and air-sealing small holes, gaps, and cracks, also act as a fire blocking material to help prevent the spread of fire and smoke. GREAT STUFF PRO™ Gaps & Cracks inhibits the spread of flames through concealed spaces. It’s a minimal-expanding, single component polyurethane foam sealant for a general purpose that is building envelope air sealing. It fills gaps up to 3" (75 mm) and expands to take the shape of cracks and voids, forming a permanent, airtight and water-resistant bond to vinyl, wood, and metal surfaces.
Can Size, oz (g) Delivery Yield, linear feet (m)(1) 24 (680) Reusable Straw 775 (236) 24 (680) Gun 970 (296) 30 (850) Reusable Straw 965 (294) 30 (850) Gun 1,450 (442) Estimated yield under ideal conditions, 3/8" (10 mm) bead.