DuPontTM Kalrez®
perfluoroelastomer parts have been the sealing material of choice for long-term reliable
sealing in the harshest chemical environments. Today, elastomeric seals are expected to perform in a
variety of even more aggressive chemicals and at higher temperatures. To meet the needs of chemical
processors, DuPontTM Kalrez®
6375 parts offers broader chemical resistance while maintaining the high
temperature stability you’ve come to expect from Kalrez® parts.
Kalrez®SpectrumTM 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. The curing system also allows for a continuous upper service temperature of 275 °C (525 °F). This is approximately 100 °F higher than other products claiming broad chemical resistance. This high temperature stability translates to increased chemical resistance over all temperature ranges, especially if high temperature process excursions occur. This combination of chemical and thermal resistance provides advantages for chemical processors. Today, chemical processors use several perfluoroelastomer parts, including Kalrez®4079, 1050LF, and 2035, to optimize chemical and thermal performance. Kalrez® SpectrumTM 6375 may be used in many applications to displace these products.
However, if optimum chemical resistance is required, then applications must be individually reviewed for the optimum compound selection.