It is customary to call a geomembrane with a thickness of> = 0.8mm, and a geomembrane with a thickness of less than 0.8mm. It is a kind of anti-seepage material made of high molecular polymer, which is divided into a homogeneous waterproof board and a composite Waterproof board.
Its main function is to prevent liquid leakage and gas volatilization.
Raw materials are generally: low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), ethylene / vinyl acetate copolymer (EVA), polyvinyl chloride (PVC), ethylene vinyl acetate Asphalt (ECB) and so on.