DuPont™ Kalrez® 4079AMS

DuPont™ Kalrez® 4079AMS perfluoroelastomer parts are a specialty black product that meets the requirements of Aerospace Material Specification (AMS) 7257. It offers outstanding thermal stability, excellent compression set resistance and good seal force retention properties. It also offers excellent resistance to HTS (High Thermo-Oxidative Stability) gas turbine engine lubricating oils and has good response to temperature cycling effects. Kalrez® 4079AMS has good mechanical properties and is well suited for both static and dynamic sealing applications. A maximum continuous service temperature of 316 °C (600 °F) is suggested. Short excursions to higher temperatures may also be possible.

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