Facts about EPDM rubber pond liners
When building a garden pond, one of the most important decisions you'll make is choosing the right pond liner. The liner forms the foundation of your pond, helping to ensure it remains watertight and durable for many years to come.
Among the various liner materials available, EPDM rubber pond liners have become one of the most popular choices for homeowners, landscapers and pond professionals alike. But what makes EPDM such a highly regarded pond liner material?
Why EPDM rubber is one of the best choices for pond liners
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 lining, a particular formulation is used to ensure it is not toxic to fish and plants. Pond-grade EPDM pond liners are specifically formulated and tested to be safe to life in a pond.
Exceptional flexibility
One of the greatest advantages of EPDM rubber is its flexibility. Unlike some liner materials that can become stiff or difficult to work with, EPDM remains highly flexible, making it easier to install in ponds with:
- Curved edges
- Shelves and planting zones
- Irregular shapes
- Waterfalls and streams
The material can easily conform to the contours of the excavation, helping to create a neat and professional finish.
EPDM offers outstanding durability
A pond liner is a long-term investment, and durability is a key consideration. EPDM rubber is designed to withstand:
- Seasonal temperature changes
- Frost and ice
- UV exposure from sunlight
Sunlight is one of the biggest causes of deterioration in many outdoor materials. EPDM rubber has excellent resistance to ultraviolet (UV) radiation and weathering, helping it maintain its integrity even after years of exposure to the elements.
This makes it particularly suitable for ponds where some liner may be exposed around the edges.
When correctly installed and protected with suitable underlay, an EPDM pond liner can provide many years of reliable performance.
The thickness of this liner material is expressed in millimetres. The characteristic of which has an impact on ease of installation and resistance to mechanical stress. A thickness of 0.75mm is ideal for the average garden pond giving the neatest results with the fewest folds.
A trusted choice for pond builders
EPDM has earned a strong reputation within the pond industry because it combines many of the qualities pond owners are looking for:
✔ Flexible and easy to install
✔ Durable and long-lasting
✔ UV and weather resistant
✔ Suitable for fish and wildlife ponds
✔ Ideal for irregular pond shapes
✔ Excellent long-term value
For anyone planning a new pond or renovating an existing water feature, EPDM rubber remains one of the most versatile and dependable pond liner materials available.
Please visit our website to order your EPDM pond liner - the Liners Online brand is called Epalyn rubber pond liner.
