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FFKM Materials for Industrial Sealing Applications
FFKM O-Rings for aggressive media, elevated temperatures, and demanding process conditions
Engineers researching Kalrez® (registered trademark of Qnity Electronics, Inc.) are often looking for information about perfluoroelastomer (FFKM) materials used in industrial sealing applications.
FFKM materials are used across a range of industries, including chemical processing, semiconductor manufacturing, pharmaceutical production, energy, and other applications where sealing solutions are required for challenging operating environments.
Simriz® is Freudenberg's family of FFKM materials. This page provides general information about FFKM materials, common application areas, and selected Simriz® compounds used in industrial sealing applications.
Understanding FFKM Materials
Products such as Kalrez® (registered trademark of Qnity Electronics, Inc.) are often referenced when engineers and procurement teams research perfluoroelastomer (FFKM) materials for industrial sealing applications.
FFKM materials are used across a range of industries and operating environments, including:
- Chemical processing
- Semiconductor manufacturing
- Pharmaceutical production
- Energy and industrial processing applications
Introducing Simriz® FFKM
Simriz® is Freudenberg's family of perfluoroelastomer (FFKM) materials used in industrial sealing applications.
The Simriz® portfolio includes a range of FFKM compounds to support different application requirements and operating environments.
Selected Simriz® compounds include:
- Simriz® 498
- Simriz® 495
- Simriz® 491
Additional compound grades are available across the Simriz® portfolio.
Typical Applications
FFKM O-rings and seals are commonly used in:
- Chemical processing systems
- Semiconductor equipment
- Oil and gas operations
- Pharmaceutical production
- High-purity and aggressive media environments
These applications often require sealing materials that can withstand aggressive chemicals, elevated temperatures, and demanding operating conditions.
Common Simriz® FFKM Compounds for Chemical Applications
Simriz® includes a range of FFKM compounds used in industrial sealing applications. The Simriz® portfolio offers multiple material options to support different application and operating requirements.
Featured compounds include:
Hardness: 80 Shore A
Color: Black
Temperature range: -5°C to 320-325°C
Hardness: 75 Shore A
Color: Black
Temperature range: -15°C to 230°C
Hardness: 70 Shore A
Color: Black
Temperature range: -20°C to 230°C
Kalrez® is a registered trademark of Qnity Electronics, Inc.. All trademarks are the property of their respective owners.
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