Bitumen primer ( Base treatment ) is a kind of waterproof coating which is made of a variety of additives as auxiliary materials and processed by special equipment. It has strong toughness, good elasticity, fatigue resistance, aging resistance, strong water resistance, no flow at high temperature, no brittle crack at low temperature, and is cold construction. It has wide environmental adaptability.It is suitable for all kinds of building structures, such as roof, wall, toilet, bath room, basement, cold storage, bridge, railway, roadbed, pool, underground pipeline, seepage prevention, and gas insulation bonding of SBS bitumen waterproof membrane .