... membrane:weight of base geotextile :100-1000g/m2, thickness of geomembrane:0.1-1.5mm2.two piece geotextile and one piece ... geotetile 100-1000g/m2,thickness of geomembrane:0.1-0.8mm4.Multi-layersKinds of membrane:HDPE, LDPE,EVA,CPE,PVC ect.Properties ... s isolation ,drainage,reinforced,protective functions, but also has closed(impermeable)function.Application:Widely used in dam,traffic tunnel,road,airport ...