Bentogard® Geosynthetic Clay Liners Reduce Your Risk Of A Leak

Reduce Your Risk Of a leak With GCLs, Your Sustainable Solution To Compact Clay Liners

Bentogard® Geosynthetic Clay Liners (GCLs) are needle-punched reinforced composites that combine geotextile outer layers with a low permeability sodium bentonite clay core. Often used as a replacement for compacted clay liners, these composites use sodium bentonite, a natural sealant that swells and seals on contact with water.

Upon hydration, bentonite swells to form a low-permeability clay liner with a hydraulic conductivity of less than 5 x 10-9 cm/sec. As a result, GCLs can provide approximately the same hydraulic protection of up to one meter of compacted clay. Due to their self-sealing attributes, the risk of failure due to field and operating conditions is significantly reduced. Layfield’s BentoGard is designed to meet the demands of any project.