Abstract: An adhesive composition adapted to bond a fluorohydrocarbon film to a substrate for exterior applications, such as roofing, panels, siding, trim, and the like. The adhesive mixture generally comprises a one component moisture cure polyurethane or polyurea adhesive composition having a reactive isocyanate compound, one or more catalysts that are capable of catalyzing the reaction of isocyanate and hydroxyl functional groups in the presence of moisture. The adhesive mixture can also comprise a two component polyurethane or polyurea composition including a reactive isocyanate compound, a polyol or polyamine, one or more catalysts.

Abstract: A building material having a durable exterior finish comprising a fiber cement substrate laminated with a fluorohydrocarbon protective film. The protective film provides the fiber cement substrate with resistance to weathering and maintains the surface texture of the underlying fiber cement substrate while providing an aesthetically pleasing and uniform pre-finish on the exterior surface. The protective film is bonded to the fiber cement substrate using an adhesive composition comprised of a one-component moisture cure polyurethane or polyurea adhesive composition having a reactive isocyanate compound or a two component polyurethane or polyurea composition.