SBS/APP Modified Bitumen Waterproof Membrane

SBS/APP modified bitumen membrane is a kind of flexible sheet waterproof which uses Styrene Butadiene Styrene/SBS  thermoplastic rubber OR amorphous polypropylene (APP) as a dipping and covering modifier,whose upper surface is coated by PE film, fine sand, mineralgrain or aluminum foil or other isolating materials.The compound is a mixture of distilled bitumen,plastomers and elastomers which gives the membrane excellent resistance to heat aging and weathering.