Geosynthetic Clay Liners (GCL)

GCLs are composed of a granular layer of sodium bentonite clay encapsulated between two needle-punched geotextiles. When hydrated, the granules swell up to 15 times of their initial volume, forming a watertight layer that is equivalent to a clay thickness from 60 to 90 cm. Sealing of the joints is done by overlapping the panels, as a result, the installation does not require a specialized team.


  • Mat composed of chemically stable geotextiles
  • Internal reinforcement by needle-punching
  • 100% sodium bentonite


  • No loss of granules through the pores of the geotextile contrary to powder based GCLs
  • Allows a great economy of clay
  • Quick and easy installation
  • Overlap sealing


  • Landfills
  • Mining areas
  • Various basins and channels


Géomembranes bentonitiques

Géomembranes bentonitiques

Géomembranes bentonitiques

Any questions ?

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Levis, QC G7A 1A8

Phone: 418.836.1333
Free fee: 1.877.836.1333

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