Underground water board for corrosion, seepage engineering HDPE waterproof board (the new HDPE water board) is based on ordinary water board restructuring through recipes, use low high-density polyethylene materials, and scientific ratio of carbon black, anti- aging agents, antioxidants, UV absorbers and stabilizer materials, with the world's most advanced automated production equipment geotextile, by extrusion technology. This production line is highly automated, from order entry, formula feeding, processing and quality control, automatic control by computer, and strictly on the basis of scientific data to operate. And can simultaneously use the latest materials (with superior tensile strength), as Metallocence and traditional PE, EVA, LLDPE and so on. All products are executed according to the American standard ASTM D production, meet or exceed national standards, product specifications, thickness 0.2mm-2.5mm, width 1m-8m, to meet the artificial lake seepage, sewage tank seepage, reservoir seepage , seepage and corrosion protection, mining and chemical requirements of the project. Product performance waterproof board main function is to prevent leakage of liquids and gases evaporate water board in rock engineering is mainly impermeable and isolation, but also play a role in strengthening and protection. It is mainly used in: earth, rockfill dam, masonry dam, concrete dam, tailings dam, water reservoir dam, channel, reservoir engineering seepage pools, subways, basements and tunnels impermeable lining, road and rail foundation seepage, sanitary landfill with filament geotextile, GCL and other geotechnical materials and so on. Technical Specifications