Waterproof board geomembrane waterproof material special sewage tank construction application, the role of waterproof board in rock engineering is mainly anti-seepage and isolation, but it also plays a role of strengthening and protection. The main waterproof board geomembrane waterproof material special sewage tank construction application, the role of the waterproof board in the rock engineering is mainly to prevent seepage and isolation, but it also plays a role of strengthening and protection. Mainly used in: anti-seepage of earth-rock dams, rock-fill dams, stone masonry dams, concrete dams, tailings dams, sewage dams, channels, reservoirs, etc.; anti-seepage lining of subways, basements and tunnels; foundations of highways and railways Anti-seepage; use with geotechnical materials such as filament geotextile and bentonite waterproof blanket in sanitary waste landfills. Waterproof board concept The HDPE waterproof board (new HDPE waterproof board) used in underground anti-corrosion and anti-seepage projects is formulated and reorganized on the basis of ordinary waterproof boards, using high-quality low-pressure high-density polyethylene raw materials, and scientifically proportioning carbon black, Anti-aging agents, antioxidants, ultraviolet absorbers, stabilizers and other auxiliary materials are made with the most advanced automatic geotechnical production equipment in the world through three-layer co-extrusion technology. This production line is highly automated. From order entry, formula, feeding, processing to quality monitoring, it is fully automated by a computer and operated strictly based on scientific data.