... projects requiring low permeability, FUNCTION:Antiseepage and separationUsage:HDPE smooth geomembrane are the preferred products for lining projects requiring low permeability ... liners, highway, railway and waterproof layer of swelling clay and wet collapsed loess Category:Geomembrane including LDPE, LLDPE geomembrane, HDPE geomembrane, EVA geomembrane, ECB geomembrane, PVC geomembrane, geomembrane ...