Kalrez® Spectrum^TM perfluoroelastomer parts is an expanding family of products within the perfluoroelastomer parts business of DuPont Performance Elastomers designed specifically to meet the demanding and emerging sealing needs of the chemical process industry (CPI).

Each product offers a reliable, cost-effective sealing solution in aggressive chemical or thermally challenging environments. Selecting the most appropriate Kalrez® perfluoroelastomer part for a specific application can help chemical companies avoid costly seal failures, improve Mean Time Between Repair (MTBR), control fugitive emissions, improve process reliability and avoid contamination of the process stream.

Kalrez® SpectrumTM - The Latest Products for CPI

• For broadest chemical resistance:
  Kalrez® Spectrum^TM 6375 is suitable for use in mixed process streams because it offers the broadest resistance to chemicals including acids, bases and amines. With good mechanical and outstanding hot-air aging properties it is also recommended for use in hot water, steam, pure ethylene oxide and propylene oxide. View 6375 datasheet



• For highest service temperature, lowest compression set:
  Kalrez® Spectrum ^TM 7075 was developed specifically for the chemical and hydrocarbon industries for use in applications where improved thermal resistance is needed. It offers very low compression set, improved seal force retention and chemical resistance above the industry standard, both in high temperature environments (up to 327°C), and in temperature cycling situations.
  View 7075 datasheet



• For hot amines, oxidizing media and ethylene oxide:
  Kalrez® Spectrum^TM 6380 offers extended service lifetime in chemical and hydrocarbon processes involving hot aggressive amines, strong acids, oxidizing media and ethylene oxide. This product has an upper service temperature of 225°C. It provides excellent overall chemical resistance and mechanical properties for static and dynamic sealing applications in these harsh environments.
  View 6380 datasheet



• For high modulus/low compression set and rapid gas decompression resistance:
  Kalrez® Spectrum^TM 7090 is designed specifically for static and dynamic sealing applications requiring high hardness, higher modulus, and extrusion resistance at continuous service temperatures as high as 325°C. It is resistant to aggressive solvents, temperature cycling and rapid gas decompression.
  View 7090 datasheet


DuPont Performance Elastomers, with over 30 years of experience in providing reliable, long-term service, offers many products for specific applications in addition to Kalrez® Spectrum^TM parts for the chemical processing industry. Some of the more frequently used are:


• Kalrez® 4079 has been the industry standard for high service temperature and low compression set. It offers excellent chemical resistance, good mechanical properties and outstanding hot air aging properties. It exhibits low swell in organic and inorganic acids and has good response to temperature cycling effects.



• Kalrez® 1050LF is a complementary product to Kalrez® 4079. It offers good hot water/steam resistance as well as excellent amine resistance.



• Kalrez® 3018 is used broadly in the chemical process and oil exploration industries. It offers higher hardness and modulus than Kalrez® 1050LF and provides good performance in hot water/steam coupled with excellent high pressure extrusion resistance.

DuPont Performance Elastomers Kalrez® perfluoroelastomer parts meets the industry needs from broadest chemical resistance to highest service temperature in many challenging sealing applications

For more information about these and other Kalrez® parts for specialty applications, please refer to the Kalrez® Application Guide or contact DuPont Performance Elastomers.