Kalrez® vs Canrez®
When evaluating high-performance sealing materials, Kalrez® FFKM and Canrez® FFKM are two leading options for applications requiring extreme chemical resistance, high temperature capability, and long-term sealing reliability. Both materials fall under the FFKM (perfluoroelastomer) category and are used in industries such as semiconductor, chemical processing, oil & gas, pharmaceutical, and aerospace.
Kalrez®, developed by DuPont, has long been considered a benchmark for FFKM performance, with a wide range of compounds tailored to specific applications. However, Canrez® FFKM from Canyon Components has emerged as a strong alternative, offering comparable performance with significant advantages in availability, lead times, customization, and cost efficiency.
For many customers, the decision between Kalrez® and Canrez® comes down to balancing performance requirements with supply chain reliability and total cost of ownership. Canyon Components works closely with customers to evaluate their application and recommend the best solution based on real-world conditions.
Common names include: FFKM, Perfluoroelastomer, Perfluorinated Rubber. Trade names: Canrez®, Kalrez®, Chemraz®, Simriz®, Parofluor®.
Kalrez® & Canrez® 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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Standard FFKM O-ring Dimensions
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
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
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
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 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
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
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.
Key Differences Between Kalrez® and Canrez® FFKM
- Performance: Both Kalrez® and Canrez® FFKM O-rings, gaskets, and custom parts provide excellent chemical resistance, high temperature capability, and low compression set. In many applications, Canrez® is engineered to match or closely replicate the performance of common Kalrez® grades
- Availability & Lead Times: Canrez® FFKM offers strong availability and faster turnaround, helping reduce downtime and avoid long lead times often associated with Kalrez® compounds
- Cost Efficiency: Canrez® FFKM is typically a more cost-effective solution, offering similar or better performance at a lower price point, which can significantly reduce total project cost
- Customization & Flexibility: Canrez® FFKM provides greater flexibility for custom compounds, geometries, and production methods, including custom molded parts, slabs, tubing, and large diameter seals
- Compound Coverage: Kalrez® offers a broad portfolio of well-established compounds (such as 4079, 6375, 7075, 9100, 6230), while Canrez® provides targeted compounds designed to meet or exceed these performance categories
- Engineering Support: Canyon Components provides hands-on engineering support, helping customers identify the right Canrez® material and optimize seal design for performance and cost
Features of Kalrez® and Canrez® FFKM O-Rings, Gaskets, & Custom Parts
- Both Kalrez® and Canrez® FFKM materials provide exceptional chemical resistance to aggressive media, including acids, solvents, and hydrocarbons
- FFKM perfluoroelastomer materials offer excellent high temperature stability, often exceeding 500°F (260°C) depending on the compound
- Both materials exhibit low compression set, ensuring long-term sealing performance
- Available in standard O-rings, metric sizes, custom molded parts, gaskets, tubing, and specialty geometries
- Suitable for high-purity, plasma, vacuum, and aggressive chemical environments
- Canrez® FFKM offers enhanced availability and competitive pricing, making it an attractive alternative for many applications
Limitations of Kalrez® vs Canrez® FFKM
- Both Kalrez® and Canrez® FFKM materials have a higher upfront cost compared to standard elastomers such as FKM, EPDM, or NBR
- Performance varies by compound, so application-specific selection and validation are required
- Some applications may not require full FFKM performance, making alternative materials more cost-effective
- Certain highly specialized or legacy specifications may still reference specific Kalrez® compounds, requiring evaluation for substitution
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® vs Canrez® FFKM
Kalrez® and Canrez® FFKM O-rings, gaskets, custom parts, and tubes are used in industries where extreme performance and reliability are required. In many cases, Canrez® provides a more accessible and cost-effective alternative without sacrificing performance, making it an increasingly popular choice.
Have questions about Kalrez® vs Canrez® FFKM? Canyon Components can help you evaluate your application and determine whether Canrez® FFKM O-rings, gaskets, custom parts, and tubes can provide a more cost-effective and readily available solution without compromising performance.
Semiconductor Industry
Both materials are used in plasma processing, wafer fabrication, and high-purity systems, where chemical resistance and low contamination are critical
Chemical Processing
FFKM O-rings, gaskets, and custom parts are used in reactors, pumps, and fluid systems exposed to aggressive chemicals
Oil & Gas Industry
Both materials are applied in high-pressure, high-temperature, and sour gas environments, including AED and RGD applications
Pharmaceutical & Bioprocessing
Used in high-purity and sterilization systems, where material stability and compliance are required
Aerospace & Defense
Applied in high-performance sealing systems, where reliability under extreme conditions is essential
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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