- -Closed cell Sponge Neoprene, weather stripping, anti skidding, surface protection -Block air, dust and moisture, and commonly used around door and window frames -Used for fixtures, noise and sound insulation, padding, expansions joints, sealant, weather stripping -Noise insulation, padding, used for HVAC, refrigeration, shock absorption, cushioning and sealing -Environmentally friendly, made of non-toxic materials, safe to use in the home, office or automobiles