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FFKM O‑Rings for Chemical Processing Applications

High‑performance sealing solutions for aggressive media, extreme temperatures, and critical process conditions

Chemical processing environments place extremely high demands on sealing components. Aggressive chemicals, wide temperature swings, and strict safety requirements can quickly degrade standard elastomers.

SIMRIZ® FFKM O‑rings are engineered to deliver reliable sealing performance in demanding chemical applications, helping prevent leakage of hazardous or high‑value media while maintaining long-term performance.

Freudenberg’s FFKM solutions deliver performance beyond conventional limits thanks to a patented cross-linking system and full vertical integration across the entire value chain. This unique setup enables consistent quality and makes high-performance seals more cost-efficient, even in demanding chemical processing environments.

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Sealing challenges in chemical applications
  • Exposure to aggressive and corrosive chemicals
  • Wide temperature fluctuations, including high‑temperature processes
  • Risk of leakage in hazardous or regulated environments
  • Material degradation from oxidizing or reactive media
  • Need for long service life to avoid downtime and maintenance

Why SIMRIZ® FFKM O‑rings are used

SIMRIZ® FFKM O‑rings combine elastomer flexibility with exceptional resistance to harsh chemical environments, making them ideal for applications where reliability and safety are critical.

Key advantages include:

  • Outstanding chemical resistance across a wide range of media
  • Thermal stability from low to very high temperatures
  • Low compression set for long service life
  • Reduced leakage risk in critical applications
  • Consistent performance in aggressive process conditions

Typical chemical industry applications

SIMRIZ® FFKM O‑rings are commonly used in:

  • Pumps and pumping systems
  • Valves and control valves
  • Mechanical seals
  • Dosing and dispensing systems
  • Vacuum components
  • Mixing and reactor equipment


O‑rings are typically used in static sealing positions where resistance to aggressive media and long-term reliability are essential for continuous operation.