1, paving waterproofing membrane substrate surface layer (screed) must be cleaned PP Which is good, and watering the basic level moist. (Note: roofing screed should be consistent with GB50207-2002 "Roof Engineering Quality Acceptance" provisions of polypropylene specifications, underground waterproof leveling layer should be consistent with GB50208-2002 "underground waterproof project quality inspection norms" provisions). Propylene, mainly through the use of halogenated flame retardants and antimony trioxide synergist interaction to obtain flame-retardant effect, usually first to add a high concentration of flame retardants and other additives Which cheap PP polypropylene sections, after a total of Mixed manufacturing retardant masterbatch, and then sliced ??with conventional polypropylene fibers melt spinning the polyether polyurethane sealing material used. Such as the use of other sealing materials should not contain mineral oil, petroleum jelly and other chemicals that affect performance polyethylene products. Polypropylene _ Shouguang Tianxiang waterproof polyester (Online) _ PP provided by Shouguang City Tianxiang waterproof material plant. Shouguang City Tianxiang waterproof material plant (www.txfscl.com) Shandong Weifang, waterproof, moisture-proof material leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shouguang Tianxiang waterproof leadership with the staff warmly welcome all inquiries negotiations to create Shouguang Tianxiang waterproof better future.