HDPE pond liner  VS PVC pond liner 


More and more ponds are very popular in recent years, it can be used for fish ponds, shrimp pond, water reservoir, swimming pool,and irrigation ponds,even water treatment ponds and so on.

The ponds construction will use waterproof, which should be waterproof impermeable, can make the ponds to be a containment,to keep the water level.

We are  a manufacturer and exporter of hdpe pond liners,the hdpe pond liners use 100% virgin high density polyethylene raw material, and with carbon black material.Our hdpe pond liners supported customers different projects, like fish pond, shrimp ponds, water dam, oil gas, biogas,landfill,mining,salt and so on.

Now many customers donot know how to choose a pond liner for the projects, and donot know why the hdpe pond liners is better than PVC liners. Choosing a right pond liner is very important decision to make when you are going to build a pond.The HDPE pond liners and PVC pond liner are common material for the ponds.In this article you could know the difference between the HDPE pond liners and PVC liners,and can make a right choice.

First, the pond liner raw material

geomembrane raw material

The hdpe pond liners main material is high density polyethylene resin, and some carbon black material. The pvc pond liners main material is Polyvinyl chloride.

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

So for different projects applications, the hdpe pond liner and pvc liner are widely used too.

Here are the major differences between the hdpe pond liners and pvc liners.

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

Safety Differences

Philippines fish pond 1mm pond liner

PVC (Polyvinyl chloride) pond liner is a synthetic material that’s available in many different formulations, many of the pvc 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 liners are marketed as fish-safe, but they still use plasticizers to maintain flexibility, and can contain small amounts of arsenic and other toxins.

Our hdpe pond liners use the 100% virgin high density polyethylene raw material, and no recycled material, the pond liners donot have toxic material,and the high density polyethylene material also make the drinking water pipe, it is very safe.

Durability and Strength Differences

HDPE Geomembrane welding

Made from high-strength thermoplastic polymers, HDPE pond liners are strong and durable, which have a high property of test. The hdpe pond liners are highly 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 significantly.. PVC pond liners, on the other hand, are flexible but less resistant to UV. If the pvc liner is exposure to sunlight for a long time, the pvc liner degrades.

Price Differences

The price between PVC and HDPE pond liners are different, for same thickness,and the size, the PVC price is cheaper than HDPE pond liners, but considering the service life and maintenance, the average cost of HDPE is much lower.

If your ponds will last for long years, the hdpe pond liner are first choice.

Installation Differences

geomembrane welding machine

The hdpe pond liners are installed by the welding machines, like hot wedge machines, hot air welding machine and extrusion welding machine, there is an overlap of two layer pond liner, to join the two liners together.The welding area have high property, UV resistance too.

The PVC liner use the 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 require. Generally, maintenance involves manpower that will involve costs. HDPE pond liners require little even no maintenance for a longer time. The welding areas are stronger than glue, and the resistance to climatic extremes ensure that you don’t need to check on the pond every day.  PVC pond liners require 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. Overall, HDPE liners are very cost-effective and have the highest service lifespan.

How thick is HDPE for pond liner?

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

What is the difference between HDPE and EPDM?

HDPE pond liners are made up of high density polyethylene resin and EPDM liner is based on ethylene propylene diene monomer, a flexible synthetic rubber. HDPE pond liners are made of single polymers, while EPDM liners are made of multiple polymers. For a large pond, especially a farm, having a rigid and weldable HDPE liner is much more useful, as EPDM liners, though flexible, cannot be welded.

The EPDM is very heavy for the construction,and the cost is much higher than HDPE pond liners.

What is the best material for a pond liner?

HDPE pond liner are best material for the ponds, and the hdpe pond liners are widely used in Philippines, Malaysia, Indonesia, Thailand, Cambodia, Canada, Peru, Kenya, etc


Based on this article words,you could know the hdpe pond liners and PVC liner difference, and know how to choose the right liner for your ponds.

Besides the products and project, the environment is also considered, to protect our good quality environment, donot use any toxic material products.