NAUE Geosynthetic Clay Liner Bentofix^® – the “Bentonite liner”

Bentofix^® Thermal Lock geosynthetic clay liners (GCLs) – also known as geosynthetic clay barriers (GBR-C) – are needle-punched, reinforced composites that combine two durable geotextile outer layers and a uniform core of high-swelling powder sodium bentonite clay. This forms a uniform, multi-directional, shear-resistant hydraulic barrier with self-sealing and re-healing characteristics.

Bentofix^® is used in the following applications:

• Landfill caps, closures and base seal
• Environmental protection under roads, railways, airports
• Dams and dykes
• Water containment and pond applications
• Structural waterproofing
• Secondary containment
• Mining applications
• Tunnels

Features & Benefits

• Versatile sealing applications possible
• Immediate sealing and long-term performance with high swellable sodium bentonite powder
• Outperforms compacted clay liners
• Robust geotextiles encapsulate and contain the bentonite
• Uniform needle-punching provides multi-directional shear strength
• Thermal Lock process increases internal shear strength and interface friction angles
• Self-sealing length overlaps; with BFG types all overlaps self-seal
• Quick, easy and cost effective to install