Great Stuff Gaps & Cracks Insulating Foam Sealant, 20 oz. is a versatile foam sealant designed to provide a reliable, no-shrink, minimal expansion solution for sealing and insulating various surfaces. This foam not only fills gaps and cracks but also bugproofs, insulates, caulks, waterproofs, and seals effectively. It bonds securely to materials such as plywood, styrofoam, urethane foam board, glass, and most plastics, making it i for a wide range of applications including sealing and insulating vans and campers. The foam becomes tack- in just 45 minutes and reaches full cure within 8 hours, ensuring quick and efficient use. With a 2-year shelf life and UL classification, this product is environmentally friendly with no CFCs. It can also be painted or sanded to match your project needs. Model Number: