
FFKM for Extreme High Temperature
Extreme high temperature environments demand sealing materials that can maintain integrity, elasticity, and chemical resistance far beyond the limits of standard elastomers. FFKM (perfluoroelastomer) O-rings, gaskets, custom parts, and tubes are specifically engineered to perform in continuous high temperature applications exceeding 500°F (260°C) and even higher in intermittent conditions. These materials are widely used where thermal degradation, compression set, and chemical attack would quickly cause failure in FKM, EPDM, or silicone.
At Canyon Components, Canrez® FFKM high temperature compounds such as CP75BK20, CP75BK31, CP75WH20, and CP75BK01 are designed to provide exceptional thermal stability, chemical resistance, and long-term sealing performance in extreme environments. These materials are optimized for applications involving aggressive chemicals combined with sustained high heat, offering a strong alternative to Kalrez® and Chemraz® with excellent availability, competitive pricing, and reliable performance.
In extreme heat, maintaining sealing force and minimizing compression set are critical. Canrez® FFKM O-rings, gaskets, and custom parts are formulated to retain their mechanical properties and resist hardening, cracking, or shrinkage, even after prolonged exposure to elevated temperatures. Canyon Components engineers can assist with compound selection, part design, and application-specific recommendations to ensure optimal performance in high temperature systems.
Common names include: FFKM, Perfluoroelastomer, Perfluorinated Rubber. Trade names: Canrez®, Kalrez®, Chemraz®, Simriz®, Parofluor®.
High Temperature 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 Extreme High Temperature FFKM O-Rings, Gaskets, & Custom Parts
- Canrez® FFKM compounds such as CP75BK20, CP75BK31, CP75WH20, and CP75BK01 are engineered for continuous high temperature performance in extreme environments
- FFKM O-rings, gaskets, and custom parts provide excellent thermal stability, maintaining sealing force at temperatures exceeding 500°F (260°C)
- FFKM perfluoroelastomer materials exhibit low compression set at elevated temperatures, ensuring long-term sealing reliability
- Canrez® FFKM O-rings, gaskets, and custom parts offer exceptional resistance to thermal degradation, oxidation, and hardening
- FFKM O-rings, gaskets, and custom parts provide broad chemical resistance, even in high temperature environments with aggressive media
- Available in multiple grades and formulations, including compounds optimized for specific chemical exposures or regulatory requirements
- FFKM O-rings, gaskets, and custom parts are suitable for both static and dynamic sealing applications in extreme heat
- Canrez® FFKM offers improved availability and cost efficiency compared to Kalrez® and Chemraz® high temperature grades
Limitations of Extreme High Temperature FFKM O-Rings, Gaskets, & Custom Parts
- FFKM O-rings, gaskets, and custom parts have a higher initial cost compared to standard elastomers, though lifecycle cost is often lower
- Extreme high temperature applications may require careful gland design to manage thermal expansion and compression forces
- Some applications may involve combined thermal and mechanical stress, requiring validation testing for optimal performance
- Lead times for certain competitor materials (Kalrez®, Chemraz®) can be extended, while Canrez® FFKM offers strong availability and faster turnaround
- FFKM materials can be over-engineered for moderate temperature applications, where alternative materials may be more cost-effective
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 Extreme High Temperature FFKM Components
FFKM O-rings, gaskets, custom parts, and tubes designed for extreme high temperature environments are critical in industries where thermal stability and chemical resistance are essential for reliable operation. Canrez® FFKM high temperature compounds provide long-term durability, reduced maintenance, and improved system uptime, making them a preferred solution for demanding applications. Canyon Components partners with customers to ensure the correct material and design approach for each high temperature sealing challenge..
Have questions about extreme high temperature FFKM solutions? Canyon Components can help you select the right Canrez® FFKM O-rings, gaskets, custom parts, and tubes, including CP75BK20, CP75BK31, CP75WH20, and CP75BK01 compounds engineered for the most demanding thermal environments.
Semiconductor Industry
Used in FFKM O-rings, gaskets, and custom parts for high temperature plasma processing, etching, and deposition systems, where both heat and chemical resistance are critical
Chemical Processing
Employs FFKM O-rings, gaskets, and custom parts in reactors, pumps, and fluid systems operating at elevated temperatures, ensuring resistance to aggressive chemicals and thermal degradation
Oil & Gas Industry
Utilizes FFKM O-rings, gaskets, and custom parts in high temperature downhole tools, valves, and sealing systems, where heat and chemical exposure are extreme
Aerospace & Defense
Applies FFKM O-rings, gaskets, and custom parts in high temperature fuel systems and sealing interfaces, ensuring reliability under extreme operating conditions
Energy & Power Generation
Used in FFKM O-rings, gaskets, and custom parts for turbines, heat exchangers, and high temperature fluid handling systems, where sealing performance must be maintained under continuous heat
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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