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FFKM O-Rings

FFKM (perfluoroelastomer) O-rings are the highest-performing elastomer sealing solutions available for applications involving extreme chemicals, high temperatures, plasma exposure, and demanding process conditions. FFKM O-rings, gaskets, custom parts, and tubes are widely used across industries where seal failure is not an option, providing unmatched resistance to aggressive media and long-term durability.


FFKM materials are engineered to combine the chemical resistance of PTFE (Teflon™) with the elastic sealing properties of traditional elastomers, allowing them to maintain sealing force under dynamic and static conditions. At Canyon Components, Canrez® FFKM O-rings are designed to deliver exceptional performance, strong availability, and competitive pricing compared to Kalrez®, Chemraz®, Simriz®, and Parofluor®, making them an ideal solution for critical sealing applications.


Whether used in standard AS568 sizes, metric O-rings, micro O-rings, or large diameter seals, Canrez® FFKM O-rings are engineered to meet the demands of applications involving high pressure, extreme temperatures, aggressive chemicals, and high-purity environments. Canyon Components works closely with customers to ensure proper material selection, compound optimization, and seal design for long-term reliability.


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.

FFKM Materials Available for O-Rings

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.

Standard FFKM O-ring Dimensions

USA AS568 O-ring sizing chart for standardized inch sizes in hydraulic, pneumatic, and industrial sealing.
USA AS568 O-ring Sizing Chart

FFKM USA AS568 O-rings are standardized sealing rings used extensively in hydraulic and pneumatic systems. They come in various sizes, materials, and hardness levels, ensuring reliable sealing and fluid containment in diverse industrial applications.

Japanese JIS O-ring sizing chart for metric sealing standards in machinery, automotive, and industrial systems.
Japanese JIS O-ring Sizing Chart

FFKM JIS O-rings adhere to Japanese Industrial Standards, offering consistent sealing solutions. These standardized O-rings come in a range of sizes and materials, ensuring precise and reliable sealing in machinery and equipment across various industries.

Metric O-ring sizing chart for precision sealing solutions in aerospace, medical, and industrial applications.
Metric O-Ring Sizing Chart

Explore FFKM metric O-rings, designed to meet international standards for sealing in various industries. Learn about their features, applications, and how they ensure reliable performance in metric-based systems.

Custom FFKM O-ring sizing for specialized sealing solutions tailored to unique industrial and engineering requirements.
Custom FFKM O-ring Sizing

Custom-sized FFKM O-rings are tailored sealing solutions, crafted to exact specifications for specialized applications. These made-to-order O-rings ensure a precise fit, optimal sealing, and resilience in diverse industrial and engineering settings, meeting unique requirements with precision.

Parker Series 5-XXX O-ring sizes with detailed dimensions for precision sealing in diverse applications.
Parker Series 5-XXX FFKM O-Ring Sizes

Explore the Parker Series 5-XXX FFKM O-ring sizes, with detailed dimensions for a range of sealing applications. Find the right size for your needs and learn about the series specifications and uses in various industries.

Micro O-rings for precision sealing in electronics, medical devices, aerospace, and other high-tech applications.
Micro O-rings

Learn about micro FFKM O-rings, precision-engineered for small-scale sealing applications in industries like electronics, medical devices, and aerospace. Discover their features, common uses, and advantages in high-precision environments.

FFKM Giant O-Rings: Large-Diameter Sealing Solutions for Extreme Applications
FFKM Giant O-Rings

Explore FFKM giant O-rings for large-diameter sealing applications. Discover Canrez® FFKM O-rings, gaskets, and custom parts designed for chemical resistance, high temperatures, and reliable sealing in demanding environments.

Features of FFKM O-Rings, Gaskets, & Custom Parts

  • Canrez® FFKM O-rings provide exceptional chemical resistance to acids, solvents, fuels, reactive gases, and aggressive process media


  • FFKM perfluoroelastomer materials offer excellent high temperature stability, often exceeding 500°F (260°C) depending on the compound


  • FFKM O-rings exhibit low compression set, maintaining sealing force over long service intervals


  • FFKM O-rings, gaskets, and custom parts provide excellent resistance to plasma, oxidation, and thermal degradation



  • Canrez® FFKM O-rings are available in multiple compounds optimized for specific applications, including steam, plasma, low temperature, and chemical resistance



  • FFKM O-rings are suitable for vacuum, high-purity, and aggressive chemical environments


  • Canrez® FFKM offers strong availability and competitive pricing compared to Kalrez®, Chemraz®, Simriz®, and Parofluor®

Limitations of FFKM O-Rings, Gaskets, & Custom Parts

  • FFKM O-rings have a higher upfront cost compared to standard elastomers such as FKM, EPDM, or NBR


  • Not all applications require FFKM performance, making alternative materials more cost-effective for less demanding conditions


  • FFKM materials may require application-specific compound selection and validation testing


  • High-pressure applications may require backup rings and precise gland design to prevent extrusion


  • Lead times for certain competitor materials may be extended, while Canrez® FFKM offers improved availability and faster turnaround

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 O-Rings

FFKM O-rings, gaskets, custom parts, and tubes are used across a wide range of industries where extreme performance, reliability, and chemical resistance are required. Canrez® FFKM O-rings provide long service life, reduced maintenance, and improved system performance, making them a preferred solution for critical sealing applications. Canyon Components partners with customers to ensure proper material selection and seal design.


Have questions about FFKM O-ring solutions? Canyon Components can help you select and source Canrez® FFKM O-rings, gaskets, custom parts, and tubes, engineered for extreme performance and long-term reliability.

Semiconductor Industry

Used in FFKM O-rings for plasma processing, wafer fabrication, and high-purity systems, where chemical resistance and low contamination are critical

Chemical Processing

Applies FFKM O-rings in reactors, pumps, and fluid systems exposed to aggressive chemicals, ensuring long-term durability

Oil & Gas Industry

Utilizes FFKM O-rings in high-pressure, high-temperature, and sour gas environments, including AED and RGD applications

Pharmaceutical & Bioprocessing

Employs FFKM O-rings in sterilization systems and high-purity processing environments, where material stability is essential

Aerospace & Defense

Uses FFKM O-rings in fuel systems and high-performance sealing applications, ensuring reliability under extreme conditions

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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