Geosynthetic clay liner is a geosynthetic material specially used for anti-seepage of artificial lake water features, landfills, underground garages roof gardens, pools, oil depots and chemical storage yards. It is made of highly expansive sodium Base bentonite is filled between the special composite geotextile and non-woven fabric, and the bentonite anti.seepage pad made by acupuncture method can form many small fiber spaces, because the bentonite particles cannot flow in one direction and form in the pad when they meet water Uniform high-density colloidal waterproof layer, effectively prevent water leakage.