... 18mm-2.5mm 5. It is cheaper than hdpe geomembrane Water proof LLDPE geomembrane 1.Feature:Good mechanical properties, high tear ... ).8) and agriculture (channel diversion canal, reservoir, pond used, the water storage pond, seepage of irrigation systems) . 9) aquaculture (intensive, ... of water vapor permeability (g.cm/cm2.s.Pa)‹1.0 × 10-137Range of operating temperature °C+70 through -70 Water proof ...