4, to improve frost resistance of concrete. Role added polypropylene fiber, polypropylene specifications in concrete, can ease the temperature changes caused by the internal stress of the concrete, polypropylene prices, preventing the extended temperature cracks; at the same time, to improve concrete impermeability is also beneficial to improve the ability of anti-freeze . 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 in polypropylene sections, after blending manufacture fire-retardant masterbatch, polypropylene, and then sliced ??with conventional polypropylene fibers melt spinning bitumen membrane refers to the fetal membrane and without fetal membrane. Those who use thick paper or glass cloth, asbestos cloth, cotton fabric and other materials impregnated tire roll materials made of asphalt, called the fetal membrane; asbestos, rubber powder incorporated into asphalt materials, the rolling system into a web-shaped material that is called the roll sheet without fetal membrane. Polypropylene, waterproof Shouguang Tianxiang, polypropylene Which is provided by Shouguang City Tianxiang waterproof material plant. Polypropylene, waterproof Shouguang Tianxiang, polypropylene Which is Shouguang City Tianxiang waterproof material plant (www.txfscl.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest Information, Contact: Zhang Guang.