No shrink, minimal expansion foam formulation with Smart Dispenser that is reusable up to 30 days, does not drip, and allows better control. Great Stuff Sealant foams, bugproofs, insulates, caulks, waterproofs, and seals. Fills gaps and cracks up to 1 In. diameter. Bonds to plywood, styrofoam, urethane foam board, glass, and most plastics. Can be painted or sanded. Seals and insulates vans and campers. Tack-free in 45 minutes, completely cured in 8 hours. 2 year shelf life. UL classified. No CFC's.