It is now widely documented that pond liners made from synthetic rubber are significantly more flexible and durable than liners made from plastics (PVC, HDPE or TPO).
Synthetic rubber liners are made by mixing one or more rubber polymers (this gives the liner it’s distinctive elastic properties) with oils, carbon black, sulphur and other substances to give the rubber it’s desired flexibility, strength and hardness.
EPDM is the name given to the class of synthetic rubbers made primarily from the polymer, Ethylene Propylene Diene Monomer. The chemical structure of this polymer gives EPDM rubber it’s resistance to heat, cold and ultraviolet rays. EPDM can be formulated using as little as 30% polymer and combining it with 70% of oils and fillers so it is relatively inexpensive to make versus other types of rubbers.
EPDM is primarily used in waterproofing where long term weather ability is required, such as for waterproofing flat roofs on commercial buildings and residential properties. It is also used to line ponds. For pond liner use, a particular formulation is used to ensure it is not toxic to fish and plants. Pond-grade Epalyn pond liners are specifically formulated and tested to be safe to life in a pond.
Thickness of liner is expressed in millimetres. The characteristic of which has an impact on ease of installation and resistance to mechanical stress. Garden ponds should be lined with a 0.75mm Epalyn liner to give the neatest of results with the fewest folds.
Please visit our website for further details on our Epalyn 0.75mm, 0.85mm and 1mm rubber pond liners.