Gordon Low 0.75mm SealEco Greenseal EPDM Rubber Pond Liner Large Sizes 6m+

From £216.70

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Gordon Low 0.75mm SealEco Greenseal EPDM Rubber Pond Liner Large Sizes 6m+
In Stock Online

This item is sent directly from Gordon Low who will contact you and will arrange delivery of the product to your chosen UK mainland address within 5 weeks of ordering. Weekend delivery is not available. The courier will only deliver to the curb and disposal of any packaging, including pallets, is not included. Please check all products for damage before signing. This item is deliverable to UK mainland only, excluding highlands and islands, full delivery information can be seen here.

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Gordon Low 0.75mm SealEco Greenseal EPDM Rubber Pond Liner Large Sizes 6m+

Rubber pond liner is a favourite among pond builders as it offers the greatest flexibility and the cleanest finish when building a pond using a flexible sheet liner. Being made of 0.75mm rubber, this liner is made to last and will easily mould to the size of hole which you have built.

Gordon Low's SealEco EPDM (Greenseal) rubber pond liner is a synthetic rubber membrane with exceptional physical properties making it the ideal choice for lining ponds, lakes, lagoons and streams. During production the EPDM is vulcanised (cured under pressure and heat) creating an elastic, chemically stable product with negligible ageing through exposure to UV-radiation, atmosphere, chemicals, earth, water and extremes of temperature.

How to calculate your required liner size:

It is recommended to purchase pond liner after you have dug your hole and measured this exactly to ensure you don’t buy too little

  1. Measure your new pond at the maximum length, width and depth in metres
  2. Double the depth measurement
  3. Add the doubled depth measurement to each the length and the width
  4. Ensure you add at least 0.5m on to each measurement
  5. Round each of the figures up to the nearest half metre to get your liner size


  1. Measure the ponds widest points (2.3m (L) x 1.7m (W) x 0.5m (D))
  2. Double the depth measurement (0.5m x2 = 1m)
  3. Add the number from step 2, to both the length and width measurement in step 1 (2.3m + 1m = 3.3m | 1.7m + 1m = 2.7m)
  4. Add at least 0.5m of overlap to each side (3.3m + 0.5m = 3.8m | 2.7m + 0.5m = 3.2m)
  5. Round each of the numbers from step 4 up to the nearest half metre. (3.8m becomes 4m | 3.2m becomes 3.5m)

Required liner size is 4m x 3.5m

Make sure when building your new pond that you remove all sharp stones, debris and any large roots from around the edge of the pond. It is also recommended to add a layer of sand to the bottom of the pond before lining and to protect your liner with underlay. Never forgot how heavy water is when using pond liner, all sides of the pond must be well supported.

The other main consideration to take into account before laying your pond liner is to make sure that the pond of your new pond is completely level.

You will receive further instructions for constructing a pond and laying a liner within our liner packaging.

Make sure that you protect your pond liner using our underlay packs. All our underlay packs are 5m x 2m - The number of underlay packs required depends on the size of liner you are buying, the following quantity of underlay packs are required for our stocked liner sizes:

Liner Size Underlay Packs Required
2.5m x 2m 1 pack required
3m x 2.5m 1 pack required
3.5m x 3m 2 packs required
4m x 3.5m 2 packs required
4m x 4m 2 packs required
4.5m x 4m 2 packs required
5m x 4m 2 packs required
5m x 5m 3 packs required
5.5m x 5m 3 packs required
6m x 5m 3 packs required
6m x 6m 4 packs required
6.5m x 5m 4 packs required
6.5m x 6m 4 packs required
7m x 5m 4 packs required
8m x 5m 4 packs required

You can view our pond underlay by clicking here. Please ensure you add the correct quantity to your basket for the size of liner you are purchasing.

SealEco EPDM geomembranes have no negative effect on the environment, they do not release any chemicals that can affect fauna, flora or ecological systems.

Product Highlights
  • This product comes with a lifetime guarantee. 

Delivery costs for your order will be calculated during the checkout process using your designated delivery address and chosen delivery method. You will only pay one delivery charge for your order and this will be calculated on your entire basket after you have entered your delivery address. If for any reason your products are not deliverable to your chosen delivery address, the checkout will inform you of this before your order is submitted.

As this product is dispatched directly from a manufacturer, we cannot confirm the courier which will be used until after your order has been accepted. Delivery information of this item will be given by our suppliers within 5 working days of your order being accepted. The delivery will be booked in at a time which is suitable for you. Please be assured that this item will not turn up without prior warning. Delivery of this product will only be Monday - Friday only.

A signature is required for all direct from manufacturer orders, at which point the responsibility for all consignments passes to you. Please make sure that you check all products for damage before you sign for them. If you have specified another recipient (who is not you) for delivery purposes, then you accept that evidence of a signature by the said recipient (or another appointed person) at your delivery address is evidence of delivery and fulfilment by us and this accepts the transfer of responsibility to yourself. 

We only ship this item to the UK mainland. We do not ship this product internationally, or to the highlands and islands.

To see a full list of our delivery charges and to read our terms and conditions, click here.

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