XPANDA-NEX is a unique one part urethane foam, which expands as it dries and solidifies. XPANDA-NEX sprays as a liquid then expands and cures to a durable, semi-rigid closed cell foam insulation. XPANDA-NEX fills cracks and plugs holes eliminating energy escape or the entrance of insect or rodents. XPANDA-NEX provides an insulation rating of R-5 for each inch of cured foam. The cured foam is chemically inert and non-reactive in approved applications. XPANDA-NEX conforms to any shape as it expands, filling cracks and holes that caulks can’t.