
High Tensile Strength OEM/ODM Custom HDPE Smooth Geomembrane for Cofferdam. Ultra-Low Permeability: Provides an impermeable barrier layer with extremely low seepage coefficient to control leakage. Chemical Resistance: Resists acids, alkalis, and corrosive environments, suitable for landfills and wastewater containment. Flexible Customization: Offers full customization including thickness (0.2-3.0mm), surface type, and composite structures. Wide Application Scope: Ideal for landfills, ponds, reservoirs, canals, tunnels, and cofferdams requiring anti-seepage. Thermal Weldable Seams: Hot-wedge welding creates high-integrity, leak-tight joints for reliable system performance. Temperature Adaptability: Maintains stable performance in both high and low temperatures across varied climates. Quality Assurance: Strict full-process quality control with physical/chemical tests and official inspection reports.