Product Introduction: HDPE geomembrane is a type of geosynthetic material. The application of geosynthetic materials originated in the 1950s. In China, geomembranes were part of the 8th Five-Year Plan. HDPE geomembrane is a waterproof and barrier material produced from (medium) high-density polyethylene resin (with a density of 0.94 g/cm³ or higher).