Geosynthetic Clay Liner

Geosynthetic Clay Liner （GCL）are composite geosynthetics consisting of natural sodium bentonite sandwiched between non-woven geotextiles (or geomembranes). When hydrated, bentonite swells to form a dense, impermeable barrier, effectively preventing water seepage. Key advantages include self-healing properties, chemical resistance, and environmental friendliness. Widely used in landfills, tunnels, basement waterproofing, and reservoir liners, they ensure long-term water tightness. Easy to install without special equipment, GCL adapt to uneven surfaces, making them a reliable choice for global civil engineering projects requiring durable, eco-compliant waterproofing solutions.