Our GCL range covers the needle-punched geosynthetic clay liner and the composite PE-laminated GCL. As a GCL liner manufacturer and supplier we encapsulate sodium bentonite clay between geotextiles to GRI-GCL3, so the bentonite clay liner self-seals into a low-permeability barrier for landfill, pond and containment lining.
A geosynthetic clay liner is a factory-made hydraulic barrier of sodium bentonite clay sandwiched and needle-punched between a woven and nonwoven geotextile. When hydrated the bentonite swells and self-seals, giving the geo clay liner a very low permeability comparable to a thick compacted clay layer in just a few millimetres. The geotextiles carry the clay and add the shear strength needed on slopes.
We manufacture the geosynthetic clay liner to the GRI-GCL3 standard for use as a primary or composite barrier in landfill base and capping, pond and lagoon lining, secondary containment and canal works. The PE-laminated GCL bonds a polyethylene film to one face for extra protection and lower permeability where chemistry or low overburden demands it. See our geosynthetic clay liner and PE-laminated GCL, often paired beneath an HDPE geomembrane in composite lining systems.
GCL Needle-punched reinforced sodium bentonite geosynthetic clay liner (GCL) to GRI-GCL3 — a self-sealing clay liner for ponds, landfills and containment.
GCL PE-laminated GCL (geofilm GCL) — a needle-punched sodium bentonite clay liner with a polyethylene film on one face for an extra impermeable barrier.
