Firestone EPDM Geomembrane, a high-performing rubber liner
The main component of Firestone Lining Systems is Firestone EPDM Geomembrane, a single-ply synthetic rubber waterproofing membrane made of ethylene - propylene - diene terpolymer, mixed with carbon black, oils, curing agents and processing aids. It is calendered into large sheets and vulcanized.
Firestone EPDM Geomembrane Product Line
Firestone EPDM Geomembranes are available in two membrane thicknesses and in a wide variety of roll sizes as illustrated below.

Firestone PondGardTM for decorative pond applications
The 1.0 mm thick Firestone EPDM Geomembrane is specifically designed for decorative pond applications. It is commercialized under the trade name Firestone PondGard.
Because of its specific formulation and production process, only the Firestone PondGard membrane is guaranteed to be compatible with aquatic life in accordance with testing reports published by the Water Research Centre in the UK.
To avoid any confusion, the Firestone PondGard membrane can be easily identified as follows:
Download more technical information about Firestone EPDM Geomembranes.(pdf 118 kB)