What is Geomembrane?
Geomembrane is a low permeability synthetic membrane liner used to control fluid or gas. The most common geomembrane is made from thin continuous polymeric sheets. This polymer derived sheet is simply known to most of us as black plastic. Althougth Geomembrane can come in different colours it is predominately black.
The manufacturing process begins with a raw polymer resin which is added to additives such as antioxidants, plasticizers, fillers, and carbon black, etc. When formulated correctly they are processed into geomembrane sheets by either: extrusion, calendering or spread coating. Using either of these processes the manufacturer will decide on their thickness, width and length of roll.
Geomembrane is manufactured out of either polyethylene, polypropylene, reinforced polypropylene, PVC, EPDM, XR-5 or Hypalon.
Typically in Australia we install HDPE (high density polyethylene) geomembrane in widths of seven or eight meters and thickness varying from 1mm, 1.5mm, 2mm or 2.5mm.
Geomembrane is very popular for use in containment of fluids in various industries.
Geomembrane Liner is used for:
- Landfill Cells
- Landfill Capping
- Treatment Plants
- Potable Water
- Waste Liquids
- Secondary containment of underground storage tanks
- Brine Solutions
- Golf Course Water Holes
- Heap Leach Pads
- Leak Detection Liners
- Emergency Spillways
- Waterproofing Liners within tunnels and pipelines
- Floating Covers
- Containment when transporting liquids
- Barriers towards odour control
- For easy replacement of sporting ground surfaces
- Ornamental, decorative and architectural ponds
- Seperation Layers.