- Polypropylene done must be done after a 5 cm above the protective layer of cement, pure polymer polypropylene fiber waterproofing membrane specification, in the sun for a year or two can mean the end of the lap side sun month can leak . - PP hard lap, if ground subsidence prone area PP Which is good, it is best not to use. Even the roof exposed, exposure to the sun is not a problem, because the waterproofing membrane is to be done on top of the protective layer, insulating layer, rather than direct it waterproof layer is disposed in the open air; the results show: with ordinary mortar / concrete compared as Join volume content of 0.1 percent (about 0.9Kg / m3) monofilament fiber, crack resistance mortar / concrete is increased by 70%. 2, greatly improving the impermeability of concrete. Polypropylene monofilament fiber bundle concrete 0.9Kg / m3 content than ordinary concrete impermeability capacity increased by 60% to 70%. 3, significantly improve the impact resistance and abrasion resistance of concrete polypropylene manufacturers | Shouguang Tianxiang waterproof (certified) | polypropylene 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.