Fluorezi® FFKM | O-rings and seals

Perfluoroelastomers (FFKM) / Fluorezi®

Perfluoroelastomers (FFKM) represent the highest class of elastomers and are used in applications requiring maximum chemical resistance and thermal stability.

Within this material group, several well-known brands are available on the market, produced by different international companies.

Some of the most recognized trademarks include:

• Kalrez® (DuPont)
• Chemraz® (Greene Tweed)
• Perlast® (Precision Polymer Engineering)
• Isolast® (Trelleborg)
• Simriz® (Freudenberg)

In addition, NewDealSeals offers Fluorezi®, our own range of perfluoroelastomers within the same material class.

All mentioned products are registered trademarks of their respective owners. While they share a common chemical base, a very high fluorine content that provides excellent resistance to aggressive chemicals and high temperatures, each brand and grade has specific properties and performance characteristics that may vary.

To support customers in making the right material choice, we provide technical comparison tables and engineering advice upon request. This ensures that the most suitable FFKM grade is selected for the intended application.