The SealEco Greenseal 0.75mm is a premium-quality EPDM rubber pond liner designed for reliable, long-lasting water containment. Manufactured to high environmental and quality standards, this flexible membrane is suitable for both professional landscaping projects and domestic garden ponds.
Engineered to provide a durable and fish-safe barrier, the Greenseal pond liner offers excellent flexibility, allowing it to adapt easily to natural pond contours and complex shapes. Its eco-friendly EPDM composition provides a modern alternative to traditional butyl liners, delivering comparable performance with a more cost-effective and environmentally responsible solution.
Whether you are installing a small ornamental pond or a larger wildlife-friendly water feature, SealEco Greenseal provides dependable protection against water loss while supporting a healthy aquatic environment.
Technical Specifications and Material Properties
SealEco Greenseal is manufactured from high-performance EPDM rubber, a material widely recognised for its flexibility and durability in water containment applications. Unlike PVC alternatives, EPDM remains flexible in both warm and cold climates, reducing the risk of cracking or brittleness over time.
Key specifications include:
• Material: EPDM Rubber (Greenseal - non-toxic and fish-safe)
• Thickness: 0.75mm
• Colour: Black
• UV Resistance: Yes
• Flexibility: Maintains flexibility in sub-zero conditions
• Lifespan: 20+ years when properly installed
The liner is resistant to UV exposure, ozone, and environmental wear, helping maintain performance over many years of use.
Advantages Over PVC and Traditional Liners
EPDM rubber pond liners are widely chosen for projects where longevity and flexibility are essential. SealEco Greenseal offers a sustainable alternative to older liner materials while maintaining the strength required for long-term installations.
Key advantages include:
• Greater flexibility compared to PVC liners
• Reduced risk of brittleness over time
• Environmentally responsible manufacturing without harmful plasticisers
• Comparable performance to traditional butyl liners at a more accessible price point
These benefits make Greenseal a practical solution for landscapers, pond builders, and homeowners seeking a reliable liner for permanent water features.
Common Applications
SealEco Greenseal 0.75mm is suitable for a wide range of pond and water feature installations.
Garden and Wildlife Ponds
Ideal for ornamental and wildlife-friendly ponds, the liner drapes easily into shelves, curves, and planting areas while providing a safe surface for fish and aquatic plants.
Koi Ponds and Natural Swimming Ponds
The smooth, flexible EPDM membrane helps create stable water environments suitable for koi and other aquatic life, supporting long-term water retention.
Water Features and Irrigation Reservoirs
Greenseal adapts well to streams, waterfalls, and irrigation storage systems where consistent water containment is required.
Installation Guidance
Correct installation is essential for achieving the expected lifespan of your EPDM pond liner. We strongly recommend installing a protective geotextile underlay beneath the liner to protect against sharp stones, roots, and uneven ground.
Installation tips:
1. Prepare a smooth base free from debris.
2. Install a suitable protective underlay.
3. Lay the liner loosely, allowing natural folds.
4. Avoid stretching the material tight.
5. Secure edges using stones, turf, or edging systems.
The flexibility of the 0.75mm EPDM material makes installation straightforward, even on ponds with complex shapes or contours.
Sizing Your Pond Liner
Selecting the correct liner size ensures proper coverage and edge anchoring.
Simple sizing formula:
• Liner Length = Pond Length + (2 × Maximum Depth) + Edge Overlap
• Liner Width = Pond Width + (2 × Maximum Depth) + Edge Overlap
Adding an overlap of approximately 0.5m to 1m allows the liner to be secured safely around the perimeter.
We supply Greenseal liners cut to size, helping you reduce waste and only pay for the material required.
Delivery and Handling
SealEco Greenseal EPDM liners are available in a wide range of sizes to suit projects of all scales.
• Smaller liners are typically delivered by courier.
• Larger liners may be shipped via pallet delivery due to weight and size.
Delivery options are calculated automatically at checkout based on the dimensions selected.
Why Choose SealEco Greenseal 0.75mm?
• Manufactured to high quality standards
• Fish-safe and environmentally responsible EPDM material
• Flexible and easy to install in a wide range of pond shapes
• UV-stable for long-term outdoor use
• 20+ year expected lifespan when installed correctly
SealEco Greenseal combines durability, flexibility, and sustainability, making it a trusted choice for garden ponds, wildlife habitats, and landscaping projects.
Frequently Asked Questions
Is Greenseal better than PVC pond liner?
EPDM liners such as Greenseal generally offer greater flexibility and longer service life compared to PVC, which can become brittle over time.
Do I need underlay?
Yes. Underlay protects the liner from punctures and helps maximise its lifespan.
Is this liner safe for fish?
Yes. The Greenseal EPDM material is non-toxic and suitable for fish, plants, and wildlife.
How long will the liner last?
When installed correctly with underlay, the liner has an expected lifespan of 20+ years.
Order Your SealEco Greenseal Pond Liner
Choose the required length and width to create a pond liner tailored to your project. Add underlay to your basket for complete protection and check delivery options at checkout. If you need advice on sizing or installation, our team is always available to help you plan your pond with confidence.
With the exception of Netting and Bulky Items, all our products are shipped on a 2-3 days service. Next day and Next day AM options are also available, For full details click on delivery information.
