Bentotex® Geosynthetic Clay Liner

Bentotex® is a Geosynthetic Clay Liner (GCL). It is an innovative composite product manufactured using the naturally occurring Bentonite clay resource. The powdered Bentonite clay is sandwiched between a woven and non woven geotextile, resulting in a very strong robust product.

The Bentonite clay gives the Bentotex® Geosynthetic Clay Liner its unique ‘self-healing’ properties. Once the product is hydrated and confined under the required minimum of 300mm cover material; if the product is punctured by an object, Bentotex® seals around it, healing itself. This is one of the main reasons it is specified for a large proportion of public works contracts and landfill applications. Bentotex® is not compromised by root penetration and is ideal for reed beds and wet systems.

The installation of the material is not dependent on prevailing weather conditions. Unlike man made (HDPE/LDPE/Rubber) liners it can be laid in cold inclement conditions. The material needs no specialist welding or power on site during installation, there by offering large savings on labour and plant costs. A comprehensive installation guide and expert advice is available on request from Geosynthetics Limited.


  • Easy to install
  • Self sealing
  • Excellent slope stability
  • High chemical resistance
  • Excellent climate resistance
  • Resistance to differential settlement


  • Ponds
  • Lakes
  • Lagoons
  • Wet systems
  • Reed beds
  • Landfill (caps and lining)

If you would like more information or for site specific project design information please call our sales department on 01455 617139