To build a pond, landfill, dam, lake, and so on, the first thing is to choose a waterproof impermeable liner. But, there are many kinds of flexible liners — often called “geomembranes”. Your liner should stay stable under the hottest and coldest temperatures your area may experience, and it should not be damaged, punctured, or torn as objects or irregularities. If the liner is exposed, it must be anti-UV.
HDPE (High-Density Polyethylene) Geomembrane is highly UV-resistant, performs well in cold temperatures, and is strong and rigid. The notable feature is it’s excellent resistance to a wide range of chemicals. Additionally, its low cost and the ability to weld sheets together make HDPE Geomembrane one of the most popular Geomembrane worldwide.
Unfortunately, the HDPE Geomembrane Liner is far from perfect, Because it is stiff and heavy, the HDPE Geomembrane Liner may be expensive to ship and can’t be customized shaped, or assembled in a factory. Instead, you’ll have to pay extra installation costs to install on-site by professionals. These expenses make the HDPE Geomembrane Liner most cost-effective for larger projects.
HDPE Geomembrane Liner’s lack of flexibility can also make installation more difficult, You must be careful when installing the HDPE Geomembrane Liner on the rough subgrade, since the material is vulnerable to punctures, and surface scratches that can become cracks over time.
| Pros | Cons |
| Excellent Chemical Resistance | Poor Flexibility |
| Good UV Resistance | Heavy Weight, Expensive to Ship, Difficult to install |
| Cheap, Weldable, Durable | Less Custom fabrication Need welding on location |
| More Than 50 Years Lifespan | Poor Resistance to Stress Cracking |