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pdfPerfluoroelastomers (FFKM, Simriz®)

Simriz is a family of perfluoroelastomer compounds developed solely by Simrit and designed to provide superior chemical resistance and thermal stability. Simriz possesses the resilience of an elastomer with chemical resistance approaching that of PTFE.

The appeal and versatility of Simriz is in its universal chemical resistance. Each Simriz compound has additional properties to meet specific application requirements.

Simriz's full range of high-quality standard and custom-blended Simriz sealing elastomers are manufactured in our fully accredited clean rooms with ISO/TS 16949 and ISO 9001 certifications. In addition, the Santa Ana, California, facility also carries the AS 9100 aerospace certification. 

Patented cross-linking system

By selecting the right cross-linking system, we have optimized the beneficial properties of Simriz. Simriz materials are cross-linked using peroxide or a patented cross-linking system. This provides Simriz seals with excellent chemical resistance ranging from organic amines and steam to plasma and etch resistance.

Simriz O-rings and molded shapes are available in many different Simriz compounds. Each compound is specifically designed to optimize the following criteria and to meet market specific application needs:

  • Broad chemical resistance
  • Mechanical properties (hardness, tensile strength, elongation, etc.)
  • Compression set resistance
  • High-temperature capability
  • Low-temperature flexibility

Temperature Range

FFKM Low Temperature Rating: -20°C / -4°F
FFKM High Temperature Rating: 325°C/ 617°F