HDPE geomembrane yosalala ndi yotsika kwambiri permeability yopangira membrane liner kapena chotchinga chosalala pamwamba. Itha kugwiritsidwa ntchito yokha kapena ndi zinthu zilizonse zokhudzana ndi uinjiniya wa geotechnical kuti athe kuwongolera kusamuka kwamadzi (kapena gasi) mu projekiti yopangidwa ndi anthu, kapangidwe kake kapena kachitidwe. Kupanga kwa HDPE geomembrane yosalala kumayamba ndi kupanga zinthu zopangira, zomwe makamaka zimaphatikizapo utomoni wa polima wa HDPE, ndi zowonjezera zosiyanasiyana monga mpweya wakuda, ma antioxidants, anti-aging agent, UV absorber, ndi zina zowonjezera. Chiŵerengero cha HDPE resin ndi zowonjezera ndi 97.5: 2.5.