Kalrez® FFKM for Extreme High Temperatures: Advanced Sealing Solutions
Kalrez® FFKM for extreme high temperature sealing is engineered for applications operating above 260°C where standard elastomers rapidly degrade or lose sealing force. These perfluoroelastomer materials are used in O-rings, gaskets, and custom parts exposed to continuous high heat, aggressive chemicals, and demanding process conditions. Kalrez® FFKM compounds maintain sealing integrity at temperatures exceeding 260°C, with short-term excursions approaching or exceeding 300°C depending on the specific formulation. This combination of thermal stability and chemical resistance makes FFKM a preferred solution for critical sealing environments where reliability is essential.
Canyon Components supplies Kalrez® FFKM sealing solutions alongside Canrez® perfluoroelastomer alternatives, offering a competitively priced option with fast lead times and extremely high quality. Our team supports compound selection based on thermal exposure, chemical compatibility, and application requirements to ensure optimal performance in extreme high temperature environments.
Common names include: Perfluoroelastomer, FFKM, high temperature elastomer
Trade names include: Kalrez®, Canrez®, Chemraz®, Parofluor®
Other FFKM Offerings - Canrez®
The Canrez® range of perfluoroelastomer (FFKM) materials, O-rings, gaskets, & custom molded parts are at the leading edge of polymer technology. Proven in the field year after year, Canrez® materials, O-rings, gaskets, & custom molded parts have been developed to offer superior sealing solutions with enhanced high temperature performance and fantastic chemical resistance at an extremely competitive price! Canrez materials are comparable, and sometimes superior to Kalrez®.
Learn more about CanRez™
Kalrez® FFKM Materials Available
This table shows many of our standard materials and links out to our O-ring store. Get in touch with us if you need a custom gasket, custom molded part, or non-standard geometry!
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Features of Kalrez® FFKM for Extreme High Temperatures
- Kalrez® FFKM O-rings, gaskets, and custom parts maintain sealing performance at continuous temperatures above 260°C
- FFKM materials resist thermal degradation and maintain elasticity during prolonged exposure to high heat
- Kalrez® FFKM provides near-universal chemical resistance across acids, solvents, hydrocarbons, and aggressive process media
- These materials exhibit excellent compression set resistance, maintaining sealing force in long-term high temperature applications
- Kalrez® FFKM offers low outgassing and stable performance in vacuum and high purity environments
Limitations of Kalrez® FFKM for Extreme High Temperatures
- Kalrez® FFKM materials have a higher cost compared to FKM and other elastomers
- Lead times may be longer depending on compound availability and custom requirements
- Low temperature flexibility is limited compared to silicone and other low temperature elastomers
- Mechanical properties such as abrasion resistance may be lower than HNBR or polyurethane in dynamic applications
- Over-specifying FFKM in applications below 260°C can increase cost without added performance benefit
Please consult a Canyon Components Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.
Industrial Usage of Kalrez® FFKM for Extreme High Temperatures
Kalrez® FFKM O-rings, gaskets, and custom parts are used in applications where sustained temperatures above 260°C and aggressive chemical exposure demand advanced sealing solutions. These materials are widely specified in systems where failure due to heat or chemical attack is not acceptable. Selecting the right Kalrez® FFKM or Canrez® compound depends on temperature profile, chemical exposure, pressure conditions, and sealing geometry.
Canyon Components provides engineering support to assist with compound selection, thermal analysis, and seal design optimization. Our team can help evaluate application requirements and provide supporting documentation including Datasheets, TDS, Test Reports, MTR documentation, and MSDS or SDS resources to ensure reliable sealing performance in extreme environments.
Semiconductor Manufacturing
Kalrez® FFKM is used in high temperature plasma processing and vacuum systems requiring stable sealing performance
Chemical Processing
FFKM materials are used in reactors and systems handling aggressive chemicals at elevated temperatures
Oil and Gas Industry
Kalrez® FFKM is used in high temperature sealing applications exposed to hydrocarbons and harsh operating conditions
Aerospace Industry
FFKM materials are used in systems exposed to extreme heat and aggressive fluids
Energy and Power Generation
Kalrez® FFKM is used in turbines and high temperature fluid systems requiring long-term reliability
Please consult a Canyon Components Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.
All Other FFKM Types Available
Canrez® FFKM O-Rings & Custom Parts
Canyon Components supplies Canrez® FFKM O-rings, equivalent to Kalrez®, Chemraz®, and Parker® O-rings, in AS568, JIS, and Metric sizes. These perfluoroelastomer O-rings provide exceptional chemical resistance, high-temperature stability, and long-term sealing performance for semiconductor, pharmaceutical, and chemical processing applications. Custom molded Canrez® parts available.
Kalrez® vs Canrez®: Comparing FFKM Sealing Solutions"
Compare Kalrez® vs Canrez® FFKM for O-rings, gaskets, and custom parts. Learn the differences in performance, availability, and cost to choose the best perfluoroelastomer for your application.
Kalrez FFKM O-Rings, Gaskets & Custom Parts
Canyon Components supplies genuine Kalrez® FFKM O-rings, gaskets, and custom molded parts with exceptional chemical resistance and high-temperature performance. Available in AS568, Metric, and custom sizes, with Canrez®, Chemraz®, and Parker® O-ring equivalents for semiconductor, pharmaceutical, aerospace, and chemical processing applications.
Parker Hannifin Parofluor FFKM O-Rings, Gaskets & Custom Parts
Canyon Components supplies genuine Parker Hannifin Parofluor FFKM materials for extreme chemical resistance and high temperature sealing. Compare Parofluor with Canrez® FFKM for O-rings, gaskets, and custom parts in demanding applications.
Chemraz FFKM O-Rings, Gaskets & Custom Parts
Canyon Components supplies Chemraz® FFKM O-rings engineered for the most demanding sealing applications. Known for extreme chemical resistance and high-temperature stability, Chemraz® O-rings provide reliable sealing in semiconductor, pharmaceutical, aerospace, and chemical processing environments. Alternatives include Kalrez®, Canrez®, and Parker® FFKM O-rings in AS568, Metric, and custom sizes.
Simriz® FFKM from Freudenberg: O-Rings, Gaskets, and Custom Parts
Canyon Components is a distributor of Simriz® FFKM O-rings designed for extreme chemical resistance and high temperature applications. Compare Simriz® with Canrez® FFKM for O-rings, gaskets, and custom parts in demanding sealing environments.
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