... 2) lighter and stronger,fire retardant, 3) ideal for outdoor wall cladding Product introduction: WPC foaming out-door wall cladding ... consists of 60% pvc S-700 resorcin ,20% fine wood fibers and 20% additives such as coupling agent,reinforcement agent,anti ... and stronger,widely used as building decoration,especially for outdoor wall cladding,outdoor flooring and garden ornaments or accessories.5,Passed ...