
Simriz FFKM O-Rings
Simriz® FFKM (perfluoroelastomer) O-rings are high-performance sealing solutions designed for extreme chemical, thermal, and plasma environments. Manufactured by Freudenberg and Simrit, Simriz® FFKM O-rings, gaskets, custom molded parts, and tubes are widely used in semiconductor, chemical processing, oil & gas, and pharmaceutical applications where maximum reliability and resistance to aggressive media are required.
Simriz® FFKM materials provide excellent resistance to a broad range of chemicals, including acids, solvents, fuels, and reactive gases, while also maintaining strong performance at elevated temperatures. These properties make Simriz® FFKM O-rings and seals ideal for applications where standard elastomers such as FKM, EPDM, or silicone would degrade or fail.
At Canyon Components, we supply Simriz® FFKM O-rings, gaskets, and custom parts, while also offering Canrez® FFKM as a high-performance alternative. Canrez® FFKM materials are engineered to deliver comparable chemical resistance and thermal performance, with the added benefits of strong availability, competitive pricing, and responsive lead times compared to Simriz®, Kalrez®, and Chemraz®. Our engineering team works closely with customers to identify the best material solution based on performance, cost, and supply requirements.
Whether you need standard AS568 O-rings, metric sizes, or fully custom FFKM components, Canyon Components provides expert support, material selection guidance, and custom manufacturing solutions for demanding sealing applications.
Common names include: FFKM, Perfluoroelastomer, Perfluorinated Rubber. Trade names: Simriz®, Canrez®, Kalrez®, Chemraz®, Parofluor®.

Simriz 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 Simriz® FFKM O-Rings, Gaskets, & Custom Parts
- Simriz® FFKM O-rings, gaskets, and custom parts provide excellent chemical resistance to aggressive media, including acids, solvents, fuels, and reactive gases
- FFKM perfluoroelastomer materials offer high temperature stability, enabling performance in extreme thermal environments
- Simriz® FFKM O-rings and seals exhibit low compression set, maintaining long-term sealing performance
- FFKM O-rings, gaskets, and custom parts provide excellent resistance to plasma, oxidation, and chemical degradation
- Available in multiple compound formulations tailored to specific applications, including semiconductor and chemical processing
- Canrez® FFKM offers a high-performance alternative with strong availability and cost efficiency, helping reduce lead times and total cost
- FFKM O-rings, gaskets, and custom parts are available in standard sizes, metric sizes, and custom geometries
Limitations of Simriz® FFKM O-Rings, Gaskets, & Custom Parts
- Simriz® FFKM O-rings, gaskets, and custom parts have a higher upfront cost compared to standard elastomers
- Lead times for certain Simriz® compounds may be extended depending on availability
- Some applications may not require full FFKM performance, making alternative materials more cost-effective
- FFKM materials may require application-specific compound selection and validation testing
- Canrez® FFKM is often selected as an alternative due to improved availability, faster turnaround, and competitive pricing
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 Simriz® FFKM O-Rings
Simriz® FFKM O-rings, along with gaskets, custom parts, and tubes, are widely used in industries where extreme chemical resistance and thermal stability are required. Canyon Components supports both Simriz® and Canrez® FFKM solutions, helping customers select the best option for their application.
Have questions about Simriz® FFKM or alternative solutions? Canyon Components can help you source Simriz® FFKM O-rings, gaskets, custom parts, and tubes, while also offering Canrez® FFKM as a high-performance, cost-effective alternative tailored to your application.
Semiconductor Industry
Used in Simriz® FFKM O-rings, gaskets, and custom parts for plasma processing, etching, and wafer fabrication, where chemical resistance and low contamination are critical
Chemical Processing
Employs FFKM O-rings, gaskets, and custom parts in reactors, pumps, and fluid systems exposed to aggressive chemicals, ensuring long-term durability
Oil & Gas Industry
Utilizes FFKM O-rings, gaskets, and custom parts in high temperature and chemically aggressive environments, including sealing applications in valves and equipment
Pharmaceutical & Bioprocessing
Applies FFKM O-rings, gaskets, and custom parts in high-purity systems and controlled environments, where cleanliness and material stability are essential
Aerospace & Defense
Uses FFKM O-rings, gaskets, and custom parts 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
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 O-Rings, Gaskets & 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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