Perfluoroelastomer (FFKM) O-Rings
Kalrez FFKM O-Rings
From aerospace and chemical processing to chip manufacturing and oil and gas applications, DuPont™ Kalrez® elastomers are engineered to provide more stability, more resistance, and more effective sealing.
Perfluoroelastomer (FFKM) currently offers the highest operating temperature range, the most comprehensive chemical compatibility, and the lowest off-gassing and extractable levels of any rubber material.
FFKM materials are perfluoroelastomeric compounds containing an even higher amount of fluorine than FKM fluoroelastomers.
Materials
Kalrez 4079
Kalrez 4079 is a black, low compression set product that has excellent chemical resistance, good mechanical properties and outstanding thermal stability. Kalrez® 4079. A maximum continuous service temperature of 316 °C is suggested. Short excursions to higher temperatures are also possible.
Kalrez 6375
Kalrez® 6375 is designed to give outstanding performance in the widest possible range of chemicals and temperatures. This product is an excellent choice for use in acids, bases, amines, steam, ethylene oxide, and many other aggressive chemicals. Mixed streams, once a problem for many chemical processors, can now be handled by 6375.
