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FFKM Compression Set Resistance

Compression set is one of the most critical properties when evaluating sealing materials, as it directly impacts a seal’s ability to maintain contact force over time. FFKM (perfluoroelastomer) O-rings, gaskets, custom parts, and tubes are widely recognized for their excellent compression set resistance, especially in extreme environments involving high temperatures, aggressive chemicals, and long service intervals.


Compression set occurs when an elastomer loses its ability to return to its original shape after being compressed. In demanding applications, poor compression set leads to leak paths, seal failure, and increased maintenance. Canrez® FFKM from Canyon Components is engineered to provide low compression set across a wide range of temperatures and chemical exposures, ensuring long-term sealing reliability in critical systems.


Compared to standard elastomers such as FKM (Viton™), EPDM, or NBR, FFKM O-rings, gaskets, and custom parts maintain sealing force far longer, particularly at elevated temperatures. Compared to Kalrez® and Chemraz®, Canrez® FFKM offers strong compression set performance with improved availability and competitive pricing, making it an excellent choice for applications where long-term sealing performance is essential.


Canyon Components works closely with customers to select the optimal compound and design to minimize compression set and maximize seal life, including considerations for durometer, gland design, temperature, and chemical exposure.


Common names include: FFKM, Perfluoroelastomer, Perfluorinated Rubber. Trade names: Canrez®, Kalrez®, Chemraz®, Simriz®, Parofluor®.

FFKM O-rings from Canyon Components providing excellent chemical, heat, and compression resistance in critical sealing applications.

Low Compression Set 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!

Canyon Components stocks Kalrez O-rings in AS568, JIS, and Metric sizes with custom molded FFKM part options.

Features of FFKM Compression Set Resistance in O-Rings, Gaskets, & Custom Parts


  • FFKM perfluoroelastomer materials provide excellent performance at elevated temperatures, where many elastomers rapidly lose elasticity


  • FFKM O-rings, gaskets, and custom parts maintain sealing integrity under continuous compression, reducing the risk of leaks



  • FFKM O-rings, gaskets, and custom parts are suitable for long-term static sealing applications, including critical systems with limited maintenance access


  • Available in multiple durometers and formulations, allowing optimization for compression set resistance based on application requirements


  • FFKM O-rings, gaskets, and custom parts perform well under thermal cycling, maintaining resilience through expansion and contraction


  • Canrez® FFKM offers strong availability and competitive pricing compared to Kalrez® and Chemraz® high-performance compounds

Limitations of FFKM Compression Set Resistance in O-Rings, Gaskets, & Custom Parts

  • FFKM O-rings, gaskets, and custom parts have a higher upfront cost compared to standard elastomers


  • Compression set performance depends on compound selection, temperature, and chemical exposure, requiring proper material evaluation


  • Improper gland design or excessive compression can negatively impact compression set performance, even with high-performance materials


  • Some applications may not require FFKM-level compression set resistance, making alternative materials more cost-effective


  • Extreme environments may require application-specific testing and validation to ensure optimal performance

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 FFKM Compression Set Resistant Seals

FFKM O-rings, gaskets, custom parts, and tubes with strong compression set resistance are used in industries where long-term sealing reliability is critical and maintenance intervals are extended. Canrez® FFKM materials help reduce leakage, extend service life, and improve system performance, making them a preferred solution for demanding applications. Canyon Components works closely with customers to ensure proper material selection and seal design.


Have questions about compression set resistance in FFKM seals? Canyon Components can help you select the right Canrez® FFKM O-rings, gaskets, custom parts, and tubes, optimized for long-term sealing performance and minimal compression set in demanding environments.

Chemical Processing

Used in FFKM O-rings, gaskets, and custom parts for reactors, pumps, and fluid systems, where long-term sealing performance is essential

Oil & Gas Industry

Applies FFKM O-rings, gaskets, and custom parts in high-pressure and high-temperature systems, where maintaining sealing force over time is critical

Semiconductor Industry

Utilizes FFKM O-rings, gaskets, and custom parts in high-purity and high-temperature environments, where seal reliability directly impacts yield

Pharmaceutical & Medical

Employs FFKM O-rings, gaskets, and custom parts in sterilization systems and high-purity processing, where consistent sealing is required

Industrial Equipment & OEM Applications

Used in FFKM O-rings, gaskets, and custom parts for long-life sealing systems, where minimizing maintenance and downtime is critical

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
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"
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
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
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
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
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.

Back to Elastomers Hub

Unlock Superior Performance with Canrez FFKM O-Rings - Explore High-Quality Sealing Solutions for Demanding Industrial Applications. Ensure High Chemical Resistance, Extreme Temperatures & Leak-Free Seals. Your Trusted Source for Canrez FFKM O-Rings.

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