Product Overview: Column-point geomembrane features evenly distributed cylindrical protrusions (column points) on one or both sides of the HDPE membrane, produced through precision molding technology. These column points create a stable gap between the membrane and the base, facilitating water drainage and reducing hydrostatic pressure. The membrane itself maintains high flexibility and waterproofness, while the column points enhance load-bearing capacity and prevent membrane deformation under soil pressure or external loads.
Application Scenario: Perfect for lining large reservoirs, artificial lakes, drinking water ponds, and irrigation water storage facilities. The column-point design allows for efficient drainage of groundwater or excess water between the membrane and the base, avoiding membrane bulging or damage caused by water accumulation. It is also suitable for projects with uneven terrain, as the column points can adapt to minor surface irregularities. In drinking water applications, it meets food-grade safety standards, ensuring no contamination of water sources.
Key Advantages: ① Column-point structure promotes water drainage and reduces hydrostatic pressure; ② Enhanced load-bearing capacity (supports up to 200kPa of soil pressure); ③ Food-grade material safe for drinking water contact; ④ Excellent adaptability to uneven terrain and minor surface defects; ⑤ Resistant to algae growth and aquatic organism damage.