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Kalrez® FFKM Diaphragms for Chemical and High Purity Use

Kalrez® FFKM diaphragms for chemical and high purity use are engineered for applications requiring exceptional chemical resistance, thermal stability, and ultra-clean performance. These perfluoroelastomer diaphragms are commonly used in fluid control systems, pumps, valves, and process equipment where exposure to aggressive chemicals, high temperatures, and critical purity standards demand reliable sealing and flexing performance. Kalrez® FFKM materials provide excellent resistance to acids, solvents, plasma environments, and high purity fluids while maintaining mechanical integrity over repeated cycling.


Canyon Components supplies Kalrez® FFKM diaphragms alongside Canrez® perfluoroelastomer solutions, offering a competitively priced alternative with fast lead times and extremely high quality. Whether you require precision molded diaphragms, reinforced designs, or custom geometries, our team supports material selection, thickness optimization, and application-specific requirements to ensure long service life and consistent performance.


Common names include: Perfluoroelastomer diaphragms, FFKM diaphragms, High purity diaphragms

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®.

Canrez FFKM O-rings from Canyon Components, a Kalrez equivalent, offer exceptional chemical resistance and high-temperature sealing for semiconductor, pharmaceutical, and chemical processing industries.

Canrez FFKM O-rings from Canyon Components, a Kalrez equivalent, offer exceptional chemical resistance and high-temperature sealing for semiconductor, pharmaceutical, and chemical processing industries.

Learn more about CanRez™

Learn more about CanRez™

Kalrez® FFKM Diaphragm 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.

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

Features of Kalrez® FFKM Diaphragms

  • Kalrez® FFKM diaphragms provide outstanding chemical resistance to aggressive acids, solvents, and process chemicals



  • Kalrez® FFKM diaphragms offer excellent flex fatigue resistance for repeated actuation in pumps and valve systems


  • High purity FFKM diaphragms exhibit low extractables and low outgassing, supporting contamination-sensitive applications


  • Kalrez® FFKM diaphragms can be manufactured in precision thicknesses and complex geometries for custom sealing solutions


Limitations of Kalrez® FFKM Diaphragms


  • Lead times may be longer depending on diaphragm size, geometry, and compound selection


  • Low temperature flexibility is limited compared to silicone or EPDM diaphragms


  • Mechanical strength may be lower than reinforced elastomers in high-pressure or high-cycle applications


  • Over-specifying FFKM diaphragms in non-critical environments can result in unnecessary cost

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 Diaphragms for Chemical and High Purity Use

Kalrez® FFKM diaphragms are used in applications where chemical compatibility, cleanliness, and long-term durability are essential. These diaphragms are widely specified in systems where both sealing and dynamic flexing must be maintained under aggressive process conditions. Selecting the right Kalrez® FFKM or Canrez® diaphragm compound depends on chemical exposure, temperature, pressure cycling, and purity requirements.


Canyon Components provides engineering support to assist with diaphragm design, material selection, and performance 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 diaphragm performance.

Semiconductor Manufacturing

Kalrez® FFKM diaphragms are used in ultra-clean fluid handling systems and process equipment requiring low contamination and high chemical resistance

Chemical Processing

FFKM diaphragms are used in pumps, valves, and reactors handling corrosive chemicals and aggressive process media

Pharmaceutical and Biotechnology

Kalrez® FFKM diaphragms are used in high purity fluid control systems requiring low extractables and clean processing conditions

Water Treatment and High Purity Fluids

FFKM diaphragms are used in systems handling ultra-pure water and sensitive fluid streams where contamination must be minimized

Specialty Fluid Control Systems

Kalrez® FFKM diaphragms are used in precision control applications requiring consistent flex performance and chemical stability

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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These products may be covered by existing or pending patents. Canyon Components is not liable for the accuracy, currency, or completeness of information herein. All information is subject to change without notice. All trademarks and service marks are the property of their respective owners. Made withgu.dev, Icons by Icons8

* Disclaimer: Kalrez® is a registered trademark of DuPont™. It represents a high-performance perfluoroelastomer used in demanding sealing applications. Please note that the Kalrez® brand is not owned by Canyon Components. All rights and ownership of the Kalrez® trademark are held by DuPont™, ensuring the quality and reliability associated with this renowned brand.