EPDM rubber consists of ethylene and propylene copolymers that develop long saturated molecular chains capable of making the compound suitable for contact with many fluids of different nature. By adding a third monomer, Diene Monomer, EPDM rubber is obtained to the compound, which has shorter molecular chains than saturated rubber; this adds to the characteristics of the starting copolymer a good resistance to radiation. The rubber EPDM stretches up to 300% and can be stretched in all directions at the same time (multiaxial response) and is not subject to breakage due to tension.