EPDM Rubber Pond Liner XXL-Grade Black 6m x 6m

The EPDM (Ethylene Propylene Diene Monomer) 900 microns thick, approx. 1.1kg per square metre, XXL-Grade pond liner is a strong and flexible synthetic rubber membrane designed for lining ponds, water features, and other aquatic environments. Known for its durability and resistance to weathering, EPDM is a popular choice for both domestic and professional pond installations where long-term reliability is important.

A major benefit of EPDM pond liner is its flexibility. The material stretches and adapts easily to uneven ground, curved edges, and natural pond shapes, allowing it to be installed in a wide range of designs. Its robust construction also gives it an impressive lifespan, typically lasting between 20 and 50 years when properly installed and maintained.

EPDM is highly resistant to ultraviolet light and ozone exposure, meaning it maintains its performance even after years of direct sunlight. The material is also fish and plant friendly, as it is non-toxic and does not release harmful substances into the water. In addition, the liner provides good resistance against punctures and tears, helping it cope with minor ground movement or small sharp objects beneath the surface.

Another advantage of EPDM is its ability to perform in varying weather conditions. It remains flexible in cold temperatures and does not become brittle in heat, making it suitable for use in different climates. Should minor damage occur, repairs are usually straightforward, with small holes or tears able to be patched without replacing the entire liner.

When compared with alternative pond lining materials, EPDM offers several clear advantages. For example, it is generally more flexible and longer lasting than PVC liners, and it does not rely on plasticisers that may break down over time. Because of these qualities, EPDM pond liners are widely used for garden ponds, koi ponds, wildlife habitats, decorative water features, waterfalls, fountains, reservoirs, and retention basins. Their strength and adaptability make them suitable for both ornamental and functional water installations.

During installation, it is recommended to place a protective underlay beneath the liner to reduce the risk of damage from stones, roots, or other sharp objects. Where more than one sheet is required, the edges should be carefully overlapped and sealed with EPDM seam tape and adhesive to create a watertight join. Designing the pond with a suitable slope can also help encourage proper water circulation and prevent areas of stagnant water.

Please note, all liners are made up from sheets securely heat welded together.

Important information about unfolding the EPDM PONDLINER:
The EPDM PONDLINER is folded at the factory to make transport easier. During long storage, and under pressure inside the packaging, the layers may stick together, so separating them can take a little more force. This is a normal characteristic of the material, not a product defect.
How to unfold the EPDM PONDLINER correctly: Before unfolding, leave the EPDM PONDLINER at room temperature (approx. 20 °C) for a few hours, especially if it has been transported in cold conditions. Cold EPDM PONDLINER is stiffer and harder to separate. Separate the layers slowly and evenly, starting from a corner or edge. Do not pull sharply. Do not use knives or other sharp tools to separate the layers.
White residue after unfolding: Where the layers were in contact, a white or matt residue may appear. It comes from processing aids used during manufacture of the EPDM PONDLINER. It is not damage to the material and does not affect the EPDM PONDLINER’s tightness, strength or durability. You can remove it with a soft, damp cloth.
When to contact us:
If the film has tears, punctures, holes or cracks on arrival. The sticking of layers and the white residue described above are not defects. This does not affect your statutory rights