Waterproof geotextile is used as the protective layer of the geomembrane to protect the impervious layer from damage. In order to reduce ultraviolet radiation and increase anti-aging performance, it is best to use the buried method.

The joint processing of composite wholesale polyester nonwoven geotextile is the key procedure of the construction, which directly affects the operating life of the project. According to the quality inspection, the thermal welding method is ideal. The method of heat welding is to heat-treat the surface of PE geomembrane to melt the surface, and then fuse it into one body by pressure. The geomembrane is best laid along a certain direction. A certain non-adhesive layer of PE film and PET is reserved on both sides of the geomembrane. When laying, the geomembrane direction of each unit should be adjusted to facilitate the welding of the two unit geomembrane.

After the geomembrane is laid, it should be pressed with a sand bag to prevent wind, and the edge joints must be free of dirt, moisture, and dust. Before welding, adjust the single PE film at the two edges of the seam so that it overlaps a certain wide band and is flat and free of wrinkles. When welding, it is best to have a technician with certain experience to weld. Welding is performed using a special welding machine. Geotextile should adjust temperature and speed.