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Geosynthetic Clay Liners (GCL / BentoFix)

Liners & Drains

Geosynthetic Clay Liners (GCL / BentoFix)

Factory-manufactured hydraulic barriers consisting of sodium bentonite clay sandwiched between geotextiles.

Geosynthetic Clay Liners (GCLs) consist of a layer of sodium bentonite clay encased between woven and nonwoven geotextiles held together by dense needle-punching. Upon contact with moisture, the natural sodium bentonite swells, forming a self-sealing hydraulic seal equivalent to several feet of compacted clay. GCLs save space and accelerate construction.

Technical Specifications
Bentonite Mass ≥ 4000 g/m² high-swelling sodium bentonite
Internal Shear Strength Needle-punched fiber locked matrix
Hydraulic Conductivity ≤ 5 x 10⁻¹¹ m/s
Self-Healing Seals around minor punctures automatically
Applications Landfill Basal & Cap Liners, Secondary Containment
Technical Inquiry

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