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Kalrez® FFKM Slabs for Custom Gaskets and Seals

Kalrez® FFKM slabs for custom gaskets and seals are designed for applications requiring extreme chemical resistance, high temperature stability, and long-term sealing performance. These perfluoroelastomer sheets are used to fabricate precision-cut gaskets, die-cut seals, and custom parts where standard O-rings or molded components are not suitable. Kalrez® FFKM slab material maintains its properties in aggressive chemical environments, including acids, solvents, fuels, and high purity process fluids, while delivering reliable sealing across a wide temperature range.


Canyon Components supplies Kalrez® FFKM slabs along with Canrez® perfluoroelastomer alternatives, offering a competitively priced solution with fast lead times and extremely high quality. Our team supports custom gasket cutting, waterjet and die-cut manufacturing, and material selection to ensure optimal performance for demanding sealing applications involving O-rings, gaskets, and custom parts.


Common names include: Perfluoroelastomer sheet, FFKM slab, FFKM gasket material

Trade names include: Kalrez®, Canrez®, Chemraz®, Parofluor®

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

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

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 Slab 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 Slabs



  • Kalrez® FFKM slabs offer excellent compression set resistance, supporting long-term gasket sealing performance



  • Kalrez® FFKM slabs can be converted into custom gaskets, seals, and flat parts with tight tolerances and consistent thickness


Limitations of Kalrez® FFKM Slabs


  • Lead times for Kalrez® slabs may vary depending on thickness and material availability


  • Low temperature flexibility is limited compared to silicone or EPDM sheet materials


  • Mechanical strength may be lower than reinforced gasket materials in high-load applications


  • Over-specifying FFKM slabs for moderate applications can increase cost without added performance 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 Slabs for Custom Gaskets and Seals

Kalrez® FFKM slabs are used to manufacture custom gaskets, seals, and flat components in applications where chemical resistance, temperature stability, and reliability are critical. These materials are widely used in industries where standard O-rings or molded parts cannot meet sealing geometry or performance requirements. Selecting the right Kalrez® FFKM or Canrez® slab material depends on fluid compatibility, temperature exposure, compression requirements, and sealing surface design.


Canyon Components provides engineering support for material selection, gasket design, and conversion processes such as die cutting, waterjet cutting, and precision fabrication. Our team can assist with application validation and provide supporting documentation including Datasheets, TDS, Test Reports, MTR documentation, and MSDS or SDS resources to ensure reliable sealing performance.

Chemical Processing

Kalrez® FFKM slabs are used to produce gaskets and seals for flanges, reactors, and piping systems exposed to aggressive chemicals

Semiconductor Manufacturing

FFKM slab materials are used for high purity gaskets and seals in process equipment requiring low contamination and chemical resistance

Pharmaceutical and Biotechnology

Kalrez® FFKM slabs are used in sanitary gasket applications requiring clean processing and low extractables

Oil and Gas Industry

FFKM slab material is used in custom gasket solutions for high temperature and chemically aggressive environments

Vacuum and High Purity Systems

Kalrez® FFKM slabs are used to fabricate seals for vacuum chambers and systems requiring low outgassing

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.