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SealEco GreenSeal EPDM Pond Liner 0.75mm

Now £8.69 £7.24 Was £9.14


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(measured to match your liner)

Now £8.69 £7.24 Was £9.14

our pond calculator

Measure the greatest width, greatest length and maximum depth. To calculate the size of liner you need.

For larger sizes please call 01225 632444

The landscaper's choice for pond liners

The slightly textured finish is pure black & has no chalkiness

Lead time, 4-5 working days including delivery time.

SealEco GreenSeal Pond Liner


SealEco GreenSeal EPDM is the most flexible liner on the market, and a stalwart of any landscaper or building professional. Seen as the cheaper yet superior alternative to Butyl pond liner, SealEco EPDM is suitable for ponds of all sizes, fabricating into formal, box-welded liners, and even lining water containment tanks.

For natural ponds, the EPDM pond liner can be supplied as a single sheet to your required size and then trimmed to the exact shape once installed. Please note: This material comes from SealEco in 1.7m width rolls so any sizes greater than this will have factory joins. This does not affect the quality or the guarantee of the liner. 

For formal shaped ponds (with vertical sides and a flat base), including Koi ponds, ornamental ponds, water features, and rills, SealEco EPDM can be fabricated and supplied as a box welded liner to your exact requirements, which will sit within the structure without any unsightly folds. These are fabricated in our factory and supplied as a single item.


Why choose EPDM Pond Liner?


Butyl Pond Liner: SealEco EPDM has a slightly embossed texture and pure black colour similar to Butyl. It is 100% synthetic and has a greater puncture resistance and flexibility compared to butyl whilst also being cheaper.

Highly flexible: This means this EPDM pond liner is greatly suited to working around shelves, waterfalls or other features you may wish to add to your pond whilst creasing less, creating a better visual appearance.

Very durable: EPDM pond liner is not harmed by UV radiation, contact with water or microbial attack. It can also withstand temperatures of up to -40 to +150, so will not crack or split.

Human, fish and animal safe: SealEco EPDM is certified safe for humans, fish and animals, and is also environmentally friendly, having been produced in Sweden to ISO14000 and ISO9001 standards.

Onsite joins: As Elevate and SealEco are both EPDM rubber pond liner materials, it is possible to use Elevate QuickSeam Tape and QuickSeam FormFlash to join sections of SealEco for more complicated designs.

Aftercare: In unfortunate cases, you may require a pond liner repair kit. Containing everything you need to repair small holes within your liner, it is an immediate solution to repair any damage that may have occurred to the liner.

Size Guide


We can supply SealEco in single sheets up to 800m2, or multiple sheets for joining on-site. If you are interested in these larger sizes, please contact us.

SealEco EPDM pond liner has good puncture resistance; however, we would recommend that all pond liners are installed with a good quality pond underlay to protect from stones and roots. We supply AquaSHIELD protective matting in both 200gsm and 275gsm.

Please note: This material comes from SealEco in 1.7m width rolls so any sizes greater than this will have factory joins. This does not affect the quality or the guarantee of the liner. 

Technical Specification


Brand SealEco GreenSeal
Thickness 0.75mm
Material Ethylene Propylene Diene Monomer (EPDM)
Max Size (online) 10m x 25m

Max Size (supplied as a single sheet*)


Other Sizes Available Yes, please contact us on 01225 632444 with your requirements
Colour Black
Weight (per m2) 1.00kg
Elasticity 300% elongation (allowing for adjustment/movement of the surface it is laid on)
Life Span over 40 years
Joining Possible On-Site Yes
Puncture Resistance Good
Aquatic, Plant & Human Safe Yes

Small garden ponds

Large ponds

Box Welded Liners





















*As the fabricator, we are able to supply larger sizes by joining the pond liner in our factory. A single sheet means the pond liner is supplied to you as one piece and you will not need to join it on-site, but it may have been joined by us.



All our liners are sent out with full installation instructions. You can also find guides to building and installing your liner in our Help & Guides: How To section.

For larger projects, we can assist with installation if required. This can either be undertaken by us or one of our partners. For more information, please see our Pond Liner Installations section or contact us.

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