Solco Bentonite Pond liner is a reinforced needle-punched geosynthetic clay liner (GCL) specifi cally designed for surface water impoundments and secondary containment. GCLs are widely used in decorative lakes, balancing ponds, wetlands, reed beds and industrial and aeration lagoons. These products are also used in canal lining and river and stream diversions. Because they do not require specialised welding equipment or labour, GCLs can be installed with minimal instruction and supervision.