Rough geomembranes are divided into single and double rough surfaces, which are generally used in landfills and are laid on slopes to increase the friction so that the membrane does not slip down on the slope. There are three types of rough geomembranes, i.e., starting rough mask, spray rough mask and column point rough mask.
HDPE geomembrane is a plastic coil composed of HDPE, which is a highly crystalline, non-polar thermoplastic resin. The appearance of HDPE in its original state is milky white, with a certain degree of translucency in the micro-thin cross-section. HDPE film has excellent impact resistance, so it is so at room temperature and even at a low temperature of -40F.