Fibrous cementitious plank assembly having a protective film and method of making same
AssigneeJames Hardie International Finance B. V.
InventorsWeiling Peng, Jeffrey Bergh
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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.
Claims14
A method of forming a fiber cement assembly, comprising:
- forming a first layer of adhesive mixture on an exterior surface of a substrate wherein the exterior surface has a texture;
- forming a second layer of adhesive mixture on a side surface of the substrate wherein the side surface extends substantially perpendicularly from lateral edges of the exterior surface of the substrate;
- placing a fluorohydrocarbon film on the exterior surface of the substrate;
- and
- applying heat and pressure to the film in a manner such that the film is bonded to the exterior surface and side surfaces of the substrate at the same time.
Dependencies are inferred from the claim text.