HDPE geomembrane good waterproof, drainage, anti-seepage and damp proof effects, ... temperature resistance, non-toxicity, long operational lift,3,good waterproof, drainage, anti-seepage and damp proof effects, complete width ... lining and side slope of pool in golf course, waterproof and anti-seepage of greening lawn, etc.).5. Petrochemical ... , plastic tarpaulin cover of salt tank). HDPE geomembrane sheet