Geosynthetic Clay Liners (GCL)

Geosynthetic Clay Liners (GCLs) are engineered materials used to prevent liquids from leaking through surfaces like landfills or underground tanks. They consist of a layer of bentonite clay, which swells and creates a tight seal when wet, sandwiched between synthetic fabrics for strength and durability. GCLs are flexible, easy to install, and provide an effective, reliable barrier against contamination. They are environmentally friendly and often used as a cost-effective alternative to traditional clay or compacted liners, helping protect soil and groundwater from pollutants.