SBS modified asphalt is a kind of windable sheet waterproof material, SBS modified asphalt is a kind of windable sheet waterproof material,which adopts styrene-butadiene-styrene (SBS) modified asphalt as a dipping andcovering modifier, whose upper surface is coated by PE film, fine sand, mineralgranules or aluminum foil, copper foils or other isolating materials. It couldbe widely used in all ...