HDPE geomembrane VS PVC geomembrane

Most people may first ask what is a geomembrane? From Wikipedia, a geomembrane is very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid migration in a human-made project, structure, or system. 


What is the purpose of a geomembrane?

Geomembranes are giant impermeable membranes made of (un)reinforced polymeric materials and used to stabilize earth and to secure landfills ensuring containment of hazardous or municipal wastes and their leachates.

What is HDPE geomembrane?

HDPE geomembrane liner is the preferred product for lining projects. HDPE liner is resistant to many different solvents and are the most widely used geomembrane liner in the world. Although HDPE geomembrane is less flexible than LLDPE, it provides higher specific strength and can withstand higher temperatures.

What is PVC geomembrane?

PVC liner is a highly impermeable liner with high malleability. It is one of the most trusted materials for the containment of water, chemicals and waste in the industry. Popular applications include (but are not limited to) landfills, coal ash ponds, and stormwater management systems.

PVC pond liners and HDPE pond liners have different mechanical and physical properties, and also field applicability.

So for different projects applications, the HDPE pond liners, and PVC pond liners are used too.

Here are the major differences between the HDPE pond liners and PVC pond liners.


HDPE is high-density polyethylene, a thermoplastic polymer based on petroleum, PVC, is polyvinyl chloride. if you live in tropical or hot climates, an HDPE pond liner is the better option for you.

Pond Liner Safety Differences

PVC (Polyvinyl chloride) pond liner is a synthetic material that’s available in many different formulations, many of the PVC pond liners include chemicals that are toxic to both fish and aquatic plants. The cheap PVC sheets that can be found at stores for construction, for example, generally contain chemicals designed to resist insect attacks and other sources of damage. Although some PVC pond liners are marketed as fish-safe, they still use plasticizers to maintain flexibility and can contain small amounts of arsenic and other toxins.

Our HDPE pond liners use 100% virgin high-density polyethylene pond liners raw material, and no recycled material, the pond liners do not have toxic material, and the high-density polyethylene pond liners material also make the drinking water pipe, it is very safe.

Durability And Strength Differences

Made from high-strength thermoplastic polymers, HDPE pond liners are strong and durable, and have a high property of test. The HDPE pond liners are resistant to UV, oxidation, chemical reactions, tear-resistant, puncture-resistant. The HDPE pond liners are welded by welding machines and not glued, the chances of leakage and seepage are very low. PVC pond liners are flexible but less resistant to UV. If the PVC pond liners is exposed to sunlight for a long time, the PVC pond liner degrades.

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HDPE Pond Liner Price VS PVC Pond Liner Price 

The prices between PVC Pond liner and HDPE pond liners are different, for the same such as pond liner 500-micron thickness, and size, the PVC pond liner price is cheaper than HDPE pond liners price, but considering the service life and maintenance, the average cost of HDPE is much lower. In a word, a cheap pond liner is an HDPE pond liner.

If your ponds will last for long years, the HDPE pond liners are our first choice.

HDPE Pond Liner Installation VS PVC Pond Liner Installation

The HDPE pond liners are installed by the welding machines, like hot wedge machines, hot-air welding machines, and extrusion welding machines, there is an overlap of two-layer pond liners, to join the two liners together. The welding area has high properties, UV resistance too.

The PVC pond liners use glue to join together, which is not good for the hot weather area.

Long-Term Maintenance Differences

One of the most important items you need to know while selecting the pond liner is the cost of maintenance it would need. Generally, maintenance involves manpower that will involve costs. HDPE pond liners need little even no maintenance for a longer time. The welding areas are stronger than glue, and the resistance to climatic extremes ensures that you don’t need to check on the pond every day.  PVC pond liners need much more attention, especially if you’re using them for fish farming.


Are HDPE Pond Liners Any Good?

HDPE pond liners are safe for both fish and engineering projects. Well, HDPE pond liners are very cost-effective and have the highest service lifespan. Either way, HDPE pond liners are better than PVC pond liners and RPE pond liners and are your first choice!

How Thick Is HDPE For A Pond Liner?

What thickness pond liner is best? Our HDPE pond liners thickness range is 0.3-3mm thickness and the HDPE pond liners popular thickness is 0.5mm,0.75mm, 1mm,1.5mm, and 2mm. The 0.5/0.75/1mm thickness HDPE pond liners are used for aquaculture pond liners, irrigation pond liners, dam liners. The 1.5mm/2mm thickness is used for water treatment, landfill liners, oil gas, and mining projects.


Based on this article’s words, you could know the HDPE pond liners and PVC Pond liner differences, and know how to choose the right pond liner for your ponds.

Both HDPE and PVC products are stronger throughout higher temperatures. ... PVC has a failure rating of 1 in 48,650 cases, where HDPE is 1 in 10,000,000. This indicator shows that when exposed to extreme weather conditions, HDPE is proven to be more durable.

Besides the products and projects, the environment is also considered, to protect our good quality environment, do not use any toxic material products.

Our mission is to be the last defense of environment protection, to be responsible for our environment, our life, and also for future generations.

So when buying the HDPE pond liners, hope this article can help you well to do the HDPE pond liner for sale. If you have any related projects or HDPE pond liners, do not hesitate to ask a price here. Thanks for your time.