La description

This product is processed by making the paper base soaked in low -softening petroleum asphalt, then covered with highsoftening petroleum asphalt, and last coated with isolating mate rials such as talk powder. 　 It is widely applied to the simple waterproofing, temporary－building waterproofing, building dampproofing, packing;as well as the single, multi-layers waterproofing of building roofs, underground facilities, water conservancy projects, etc.