Pond Liner Information - Pond Liners

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• All guaranteed for life.

We can deliver anywhere in the UK mainland (Excluding Scottish Highlands and some remote locations). Seasonal time variations please check when ordering.

Express Liners are available on this site and include next day delivery subject to stock. If you are not able to find the size you require please telephone with your order.

Firestone Lining Systems are based on EPDM Geomembranes offering dependable performance for garden ponds, landscape ponds, agricultural ponds, irrigation canals, artificial snow reservoirs, landfill caps, etc.

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.

Key features and benefits
The success of Firestone EPDM Geomembranes can be attributed to their unique combination of benefits:

High flexibility: Firestone EPDM Geomembranes remain highly flexible even at very low temperatures (down to 45 °C), enabling year round installation in a variety of climates and terrain.

 
Superior weathering resistance: Firestone EPDM Geomembranes offer unmatched resistance to ultraviolet radiation and ozone.

Low maintenance: Firestone EPDM Geomembranes require little or no regular maintenance after installation. The Geomembrane can survive normal environmental exposure for well over 30 years.

Environmentally friendly: Firestone EPDM Geomembrane is an inert material with low environmental impact during production and use. In addition, Firestone™s EPDM manufacturing facilities have received ISO 14001 certification, a testimony of the company™s commitment to environmental management.

MANUFACTURE
Production takes place at a factory in Varnamo, Sweden where we have access to a cost-effective supply of raw materials and leading process technology. Production includes everything from: purchase of raw materials, formulation of mixtures, mixing, double-layered calendaring and vulcanising in autoclaves, to finished products which can be supplied in standard rolls as well as prefabricated panels made to measure.

Operation's are certified in accordance with ISO 9001 and ISO 14001.

THE MATERIAL
Butyl: The polymer butyl (IIR - isobutylene isoprene - rubber) is an elastomer with a small number of double bonds, produced through co-polymerisation of isobutylene and isoprene.

EPDM: The polymer EPDM, ethylene-propylene rubber, is produced through co-polymerisation of ethylene, propylene and diene monomer, producing a polymer made up of saturated linear macromolecules with a paraffinic structure.                                             

In addition to the base polymer, both EPDM and Butyl contain reinforcing carbon black, fillers, process chemicals, antioxidants and vulcanising agents. After mixing the ingredients into a homogenous plastic compound, two layers of the rubber are rolled out in a calender to form a double sheet. Vulcanisation is then carried out. The long rubber molecules in the material are cross-linked through heat and pressure, creating an elastic membrane.

RESISTANT TO THE ENVIRONMENT
The vulcanisation process means that the material differs from all thermoplastic products, in that its properties are not affected by varying temperatures. The product is chemically stable and always returns to its original dimensions after stretching.

The cross-linked molecular structure gives EPDM and Butyl rubber their unique properties. Ageing or changes in characteristics are negligible despite decades of exposure to the atmosphere, sunlight, UV radiation, chemical fallout, water or major temperature fluctuations.

CHEMICALLY STABLE
EPDM and Butyl rubber contain no plasticisers or additives which can evaporate or be washed out over the years. The strength and elasticity of the membrane remain practically unchanged for decades, without shrinkage, brittleness, melting or cracking. The membrane is equally elastic, regardless of whether the temperature is -30°C or +120°C.