Kalrez® FFKM High Compression Set Resistance O-Rings
Kalrez® FFKM high compression set resistance O-rings are engineered for applications where long-term sealing force retention is critical under heat, pressure, and aggressive chemical exposure. Compression set is one of the most important factors in O-ring performance, as it directly impacts the ability of a seal to maintain contact and prevent leakage over time. Kalrez® perfluoroelastomer materials are formulated to minimize permanent deformation, allowing O-rings, gaskets, and custom parts to retain sealing integrity even after prolonged exposure to elevated temperatures and harsh environments.
Canyon Components supplies Kalrez® FFKM O-rings alongside Canrez® perfluoroelastomer alternatives, offering a competitively priced solution with fast lead times and extremely high quality. Our team supports compound selection based on compression set performance, temperature exposure, and chemical compatibility to ensure reliable long-term sealing in demanding applications.
Common names include: Perfluoroelastomer O-rings, FFKM O-rings, low compression set seals
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 High Compression Set Resistance O-Rings
- Kalrez® FFKM O-rings provide excellent resistance to compression set, maintaining sealing force over long service periods
- FFKM materials retain elasticity and sealing performance at elevated temperatures, often exceeding 260°C depending on compound
- Kalrez® FFKM O-rings offer near-universal chemical resistance across aggressive fluids, solvents, and hydrocarbons
- High compression set resistance supports reliable sealing in both static and dynamic applications involving O-rings, gaskets, and custom parts
- Kalrez® FFKM materials exhibit low outgassing and low extractables for vacuum and high purity environments
- Canrez® FFKM O-rings provide comparable performance with competitive pricing and improved availability
Limitations of Kalrez® FFKM High Compression Set Resistance O-Rings
- Kalrez® FFKM O-rings have a higher cost compared to standard elastomer sealing materials
- Lead times may vary depending on compound selection and availability
- Low temperature flexibility is limited compared to silicone or specialized low temperature elastomers
- Mechanical strength and abrasion resistance may be lower than materials such as HNBR or polyurethane in high-wear applications
- Over-specifying high-performance FFKM O-rings in moderate applications can increase cost without added 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 High Compression Set Resistance O-Rings
Kalrez® FFKM O-rings with high compression set resistance are used in applications where long-term sealing reliability is required despite heat, pressure, and chemical exposure. These O-rings are widely specified in systems where seal relaxation or permanent deformation would lead to leakage or system failure. Selecting the right Kalrez® FFKM or Canrez® compound depends on temperature range, chemical exposure, pressure conditions, and sealing geometry.
Canyon Components provides engineering support to assist with compound selection, compression set evaluation, 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 over time.
Semiconductor Manufacturing
Kalrez® FFKM O-rings are used in high temperature process equipment where long-term sealing force retention is critical
Oil and Gas Industry
FFKM O-rings are used in high pressure and high temperature environments where compression set resistance is essential for safety and performance
Chemical Processing
Kalrez® FFKM O-rings are used in reactors and fluid systems where exposure to aggressive chemicals requires stable long-term sealing
Aerospace Industry
FFKM O-rings are used in systems exposed to thermal cycling and aggressive fluids where seal integrity must be maintained
Vacuum and High Purity Systems
Kalrez® FFKM O-rings provide reliable sealing in environments where compression set and outgassing must be minimized
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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