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What's the Best Pond Liner? Compare Pond Liners to Discover

Which is the best pond liner?


If you’re trying to find out which the best pond liner to use is, it’s worth breaking this down into a few smaller questions first. We can then help you identify the best liner to use for your project.

What are pond liners made of?


Our Pond liners are generally made of three materials, so the best pond liner to use depends on requirements:

EPDM Rubber, which stands for Ethylene Propylene Diene Monomer, a modern synthetic rubber substance. EPDM is a strong & durable material and sheet forms are widely used in roofs, building facades and it’s fantastic for pond and lake liners!


PVC, which stands for Poly Vinyl Chloride, a synthetic plastic polymer. PVC is widely used in many industries but it’s important to remember only non-toxic PVC should be used for ponds. PVC liners are relatively in-expensive, lightweight and fairly flexible in terms of movement.

Butyl Rubber, a traditional synthetic rubber with a range of uses, including inners for tyres & inflatable balls, chewing gum and more. Butyl is very flexible and offers particularly good resistance to UV rays from sunlight; however, it is relatively expensive compared to EPDM and PVC.


Which pond liner material is best?

The best pond liner material depends on the type and size of the pond you’re creating or looking to replace. We’ve created a pond material comparison table below showing the main pond lining options available.

The pond liner comparison table provides details on the composition of the materials, their features, sizes available, and the applications they’re most suited to. For more information on any of the lining materials, you can click on the ‘Brand’ table heading to visit the respective product page.

Although Butyl liner is not mentioned in the table or available directly on the website, mainly due to higher cost and suitable similar products such as EPDM entering the market, we do supply and regularly make Butyl liner for customers, with stock available. If you would like a quote for Butyl or to place an order for Butyl, please call us on 01225 632444.

Brand Firestone PondGuard Liner Firestone PondEasy Liner SealEco Pond Liner aquaPLAN Pond Liner Box Welded Pond Liner
Thickness 1.02mm 0.80mm 0.75mm 0.5mm 0.75mm/1mm
Weight 1.39kg/m2 1kg/m2 1kg/m2 0.65kg/m2 1kg/m2 / 1.25kg/m2
Finish Matt carbon black Carbon Black textured black smooth shiny black textured black
Online Widths 6' - 50' 3m - 7.5m 1.7m - 10m 2m - 5m N/A
Lengths 4' - 100' 1m - 10m 1m - 25m 1.5m - 6m N/A
Largest Size 50' x 100' 7.5m x 30m 10m x 25m 5m x 6m Contact us
Larger Factory Sheets Available Up to 1000m2 Up to 225m2 Up to 800m2 Up to 200m2 Contact us
Join Onsite (for lakes etc) Yes Yes Yes No Yes
Flexibility Good Great Great Excellent Perfect fit
UV Resistance Excellent Excellent Excellent Good Excellent
Puncture Resistance Excellent Excellent Great Average Great
Aquatic, Animal & Human Safe Yes Yes Yes Yes Yes
Life Span 40 years 40 years 40 years 15-20 years 40 years
Suitability Small to large freeform ponds Small to large ponds

Small to large freeform ponds

More intricate designs

Box welded ponds

Small ponds

Circular, rectangular,

square ponds






Swimming ponds



Box welded ponds

Garden ponds

Koi and formal ponds

Ornamental ponds

Swimming ponds

Cost (inc VAT) £10.79/m2 £8.96/m2 £8.70/m2 £3.83/m2 Contact us


We recommend that all liners are fitted with pond underlay to provide protection for the liner.

Which pond liner should I use?


We hope the information provided here helps you choose the best type of liner for your project. If you have any further questions about any of our pond liners and which pond liner to use please contact us and we’d be happy to help you or you can also read our guide to pond design.