However, if properly taken care of, EPDM products can last for decades. Roofing made from EPDM can last years, and liners can last for EPDM is used as a cheaper alternative to silicone rubber for parts that will have a lot of outdoor or moisture exposure, or for electrical insulation. However, it can also be used as roofing or liners.
When you need a rubber material that offers excellent resistances to weather, heat, and other factors without breaking the bank, EPDM grommets, gaskets, tubing, and other parts may be the answer you need.
EPDM — also known as ethylene propylene diene monomer — is an extremely versatile material used in a variety of applications, from automotive products to HVAC parts. This type of rubber also acts as a less expensive alternative to silicone, as it can endure weather conditions, abrasion, and other challenges for long periods of time with proper use. These systems consist of a single layer rubber membrane, used in conjunction with other components, such as vapour barriers and thermal insulation , as well as accessories drainage, pipes, gravel guards etc , and, in the case of green roofs, vegetation.
While, like many other elastomers, EPDM is tear-resistant, with a high tensile strength, what sets EPDM apart from in terms of its suitability for roofing is its ability to withstand everything the environment can throw at it, from extreme heat and cold to ozone and UV rays. This makes it unmatched in terms of weather-resistance, which is why it is so ideally suited for roofing.
The CARLISLE brand started in , in Carlisle Pennsylvania, as a manufacturer of bicycle and car tyre inner tubes, but in fact its foundations were laid in when brothers Albert and Louis Cohen founded a factory making rubber shoes. A German scientist called Karl Ziegler is responsible for the scientific breakthrough that led to the EPDM production process, while working on polymerisation. He realised that there were traces of nickel in the autoclave used for the reactions, which caused the reaction to stop.
By using a titanium and aluminium-based catalyst instead, and carrying out the reaction under atmospheric conditions, Ziegler and his students discovered that not only could the reaction be accelerated, but it produced a polymer that was strong, flexible and had a high tolerance for heat and cold.
In addition, this could be done at normal pressure. Before this discovery, ethylene had been considered difficult to polymerise, with high pressures and high temperatures needed. Within 3 years of the discovery, metric tons of the new plastic had been produced. Ziegler disclosed his catalyst to the Montecatini Company, where an Italian scientist called Giulio Natta was acting as a consultant. In , Karl Ziegler and Giulio Natta were awarded the Nobel Prize for Chemistry for their work on controlled polymerisation, which greatly enhanced the progress of plastics and their applications.
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