A solid or spongy cellular material produced by the reaction of a polyester (such as glycerin) with a diisocyanate (such as toluene diisocyanate) while carbon dioxide is liberated by the reaction of a carboxyl with the isocyanate; used for thermal insulation, soundproofing and padding.
Frantl Industry´s Spray-On Polyurethane Foam System (SPF) forms a seamless, insulated system. Without seams, fasteners, or joints, the system doesn´t allow moisture to seep in.