High-performance 1mm EPDM rubber liner for garden ponds, lakes, natural swimming pools, and water features
The Greenseal 1mm EPDM Pond Liner Rubber is a superior-quality, flexible, and long-lasting waterproof membrane designed to meet the demanding needs of pond installers, landscapers, and DIY enthusiasts. Manufactured using premium Ethylene Propylene Diene Monomer (EPDM) rubber, this liner offers exceptional durability, weather resistance, and elasticity, ensuring a watertight seal for ponds, lakes, and natural swimming pools.
EPDM liners like Greenseal are renowned for their outstanding resistance to UV radiation, ozone, and extreme temperatures, making them perfect for outdoor water features exposed to harsh environmental conditions. This liner is also fish-safe, chemical-resistant, and environmentally friendly, supporting healthy aquatic ecosystems.
Features & Benefits
1mm thick premium EPDM rubber – flexible yet tough for long-lasting waterproofing
Excellent waterproof barrier – prevents leaks and water loss
UV, ozone, and weather resistant – withstands outdoor exposure without cracking or degradation
Safe for fish, plants, and wildlife – ideal for ecological water features
Highly elastic – adapts to complex pond shapes and contours
Chemical resistant – resists pond chemicals and natural contaminants
Easy to install and maintain – can be glued, welded, or mechanically fixed
Smooth surface inhibits algae growth – keeps water cleaner longer
Applications
Garden ponds and ornamental water features
Natural swimming pools and eco-friendly pools
Wildlife ponds and habitat restoration projects
Lakes, reservoirs, and larger water bodies
DIY pond and water feature installations
Sizes Available
Available in rolls or custom-cut sheets to your specifications
Widths customizable per project needs
Lengths customizable per project needs
Why Choose Greenseal EPDM Pond Liner?
Greenseal EPDM pond liner is recognized as a top-tier waterproofing solution that combines durability with environmental safety. Its superior flexibility and resistance to environmental stressors make it ideal for both professional pond installations and DIY projects. The 1mm thickness ensures lasting protection, making it a cost-effective long-term investment for water features of all sizes.
Why Buy from Green-tech?
Trusted supplier for pond liners across the UK
Fast delivery and reliable stock availability
Expert technical support and installation advice
Competitive pricing with bulk order discounts
Environmentally conscious product range
Please Note:
All pond liners in this range are bespoke-made to order and dispatched directly from our trusted supplier’s warehouse. While we work closely with our suppliers to provide accurate lead times, we do not have live stock control for these products.
During peak periods—particularly in spring and summer—manufacturing and dispatch can take up to 20 working days, depending on the complexity of the order and production demand.
Tracking information will be provided where available, but please note this depends on the supplier’s delivery service. If you have specific timeframes, access concerns, or need assistance before ordering, our team is happy to help with advice and up-to-date lead times.

Property Detail
Material EPDM Rubber
Thickness 1mm
Colour Black
Width Custom widths available
Length Custom lengths available
Tensile Strength High – resists tears, punctures, and stretching
Waterproof 100% impermeable
UV Resistance Excellent – resists UV radiation and ozone
Chemical Resistance Resistant to pond chemicals and natural elements
Suitable For Garden ponds, natural swimming pools, lakes
Installation Gluable, weldable, or mechanically fixed