Geomembranes & Liners

Geomembranes are synthetic membrane liners or barriers with very low permeability used to control fluid migration in projects. These include HDPE, LLPE and Geosynthetic clay liners as well as Protection Membranes.

Bentonite liner

A Bentonite liner is a Geosynthetic membrane made of bentonite clay, a natural product, making it a very environmentally suited choice for a liner.

It is quick and easy to install with no need for welding or taping on-site, which also means no specialist equipment or personnel is required for its installation. 

Bentonite liners are very versatile, they have excellent slope stability and can be installed easily even in remote areas.

Once the product is hydrated and confined under the required minimum of 300mm cover material, the liner fosters ‘Self-healing’ properties. If the liner is then penetrated, the sodium bentonite swells around the puncture and creates a seal, healing itself.

Bentonite liners also have high chemical and climate resistance and resistance to different settlements.

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


Linear Low-Density Polyethylene (LLDPE) Liners are Geomembranes that are designed for applications that require greater flexibility and elongation performance.

They are flexible, UV, chemical and puncture resistant, and are extremely durable.

  • Ponds
  • Collections Ponds
  • Waste containment

HDPE Liner

HDPE Liners are impermeable, high-quality barriers manufactured from high-density polyethylene (HDPE). The membrane has a high chemical resistance and is ideal for use on sites affected by hydrocarbon and VOC contamination. They are also resistant to stress cracking which make them a particularly robust liner.

They tend to be used in the containment and management of solids, liquids and gases and will also effectively prevent the ingress of a number of other harmful gases, including radon, as well other toxic industrial contaminants.

  • Attenuation tank encapsulations (SUDS)
  • Porous sub-base installations
  • Containment and cut-off trenches
  • Structural waterproofing
  • Pond/Lagoon Lining
  • Landfill Base/Capping
  • Radon Barrier
  • Invasive Weed Barrier

Protection Membrane

Protection Membranes are typically Non-woven Geotextiles that are placed above and below HDPE or LLDPE liners in installations.

This is done to minimise the risk of the liner being punctured or damaged.

  • Protection of liners

What our customers say

“The help and support I received was second to none…”

…with a large product range they were able to advise on materials to best fit my requirements … and get them to our remote site quickly”.

Seamus Farrell – Bam

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