As a durable elastomer, EPDM is conformable, impermeable, and a good electrical insulator. Solid EPDM and expanded EPDM foam are often used for sealing and gasketing, as well as membranes and diaphragms. EPDM is often used when a component must prevent fluid flow while remaining flexible. It can also be used to provide cushioning or elasticity. While EPDM has decent tensile strength, its flexibility makes it inappropriate for rigid parts such as gears, shafts, and structural beams.
