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Here's a look at 3 considerations for determining if EPDM is right for your application:
1) What is EPDM's temperature range?
EPDM seals typically have a high-temperature limit of 350°F and a low-temperature limit of of -20°F to -60°F. In applications with more demanding temperature requirements, silicone is often the solution.
2) When should I use EPDM?
EPDM is commonly used in outdoor applications due to its excellent ozone, weathering and aging resistance. EPDM also resists water and steam, maintains flexibility at low temperatures and resists alkalis, acids and oxygenated solvents.
3) When should I avoid EPDM?
EPDM is not recommended for resistance to oil, gasoline and hydrocarbon solvents. It also exhibits poor flame resistance. If these chemical resistance properties are required, neoprene may offer a suitable alternative.
EPDM may be manufactured as either a closed-cell sponge or dense product depending on the application's compression requirements and other sealing conditions. Sponge and dense materials may be combined to form a dual-durometer seal. EPDM also can be bonded to plastic to add rigidity to a component.