SealEco EPDM (Greenseal) and Butyl pond liner are both synthetic rubber membranes with exceptional physical properties making them the ideal choice for lining ponds, lakes, lagoons and streams.

Despite their different chemical compositions, they look and feel the same. Continued rise in the cost of Butyl rubber polymer limits its economical application for lining ponds that require large quantities of material.

EPDM rubber, developed in 1959 has, over the last 50 years, become more widely used in building and civil engineering.

As a result of higher current levels of production, EPDM has become more economical than the Butyl rubber.

As a pond liner geomembrane producer Gordon Low now fabricate far more EPDM liners than Butyl liners due to the competative price and exceptional properties of EPDM that in some instances even out perform the more expensive Butyl option

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.

SealEco EPDM pond liner is black in colour.

The initials EPDM are derived from its major components of Ethylene, Propylene, Diene monomer and is an M class synthetic rubber. Interestingly Butyl Rubber actually has EPDM in its compound to enhance certain properties