... fiber (wood powder, bamboo powder, etc)10% chemical additives. (Anti-UV agent, Anti-oxidation agent, stabilizers, colorants, anti fungus agent, coupling ... , Corridor, Garage, veranda Pool&SPA Surrounds, Boardwalk, PlaygroundCharacteristics1.With high density,high strength and good looking2.Non absorbent,effectively prevent the decay ... two boards and tighten the screw. New Engineered Flooring WPC Board