Composite geomembranes consist of an assembly of at least two geosynthetic products, namely a geotextile and a geomembrane. This composition makes it possible to obtain a geomembrane with specific properties in addition to reducing the manipulations and the time required for the installation of a multilayer system.

GEoflex 20

This geomembrane is used in order to minimize the risk of uplift of concrete structures during freeze-thaw cycles. It is designed with a nonwoven geotextile, made of 100% polypropylene fibers, laminated with a polyvinyl chloride (PVC) membrane. The non-woven geotextile side adheres to the concrete while the PVC face prevents any adhesion between the structure and the granular material. The sealing of joints is done using Tapecoat.


  • Good adhesion to concrete
  • Impermeable
  • Great flexibility


  • No degradation of polypropylene in contact with concrete
  • PVC offers a smooth surface reducing adhesion of granular material
  • Easy installation


  • Manholes
  • Catch basins
  • All concrete structures subject to lifting

Technical documentation

Géomembranes composites



The canalconsists of a linear low density polyethylene geomembrane to which 2 nonwoven geotextiles have been laminated. This 3-in-1 composite is specially designed for the waterproofing of canals. With excellent puncture resistance, and an interface of higher friction, it can be installed directly on the majority of soils and slopes. The installation is very fast (3 products in 1) and can be welded by fusion or with a hot melt adhesive. As a result, the contractor does not need a geomembrane welding team. The Canal³ saves time and money compared to a typical waterproofing system.


  • Increased adhesion on most soils and slopes inclined
  • Inert materials resistant to biological and chemical degradation
  • Puncture resistance
  • Wide range of geomembrane and geotextile thickness available


  • Simple, reliable and cost-effective solution for channel lining
  • Does not require extensive preparation of the foundation
  • Easy and fast installation
  • Requires no specialized welding team


  • Channels and water containment
  • Ponds and retention basins
  • Tailings ponds
  • Landfills


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