TRP Polymer Solutions explain the chemistry behind the FFKM’s temperature range

In this article, PIF spoke to TRP Polymer Solutions a leading industry specialist in custom rubber mouldings. Discussing the FFKM’s temperature range, suitable for a huge variety of industries and applications. We learned how the chemistry of the FFKM meets demanding applications that require high performance ‘O’ rings.

How FKM rubber produces a broader temperature range

Perfluoroelastomer (FFKM) combines the chemical resistance of polytetrafluoroethylene (PTFE) with the flexibility and elasticity of FKM and it’s FFKM’s fully fluorinated backbone that gives it its chemical, oxidative and thermal stability.

FFKM is the ideal material for demanding applications that require high performance ‘O’ rings. The unique properties of this remarkable material provide the three-fold benefits of high seal integrity, reduced maintenance and operating costs, and improved safety.

TRP Polymer Solutions have developed grades of FFKM with broad temperature ranges that are capable of operating in extremes of temperature from -55°C to +330°C. Making FFKM an extremely useful material for sealing solutions in hazardous industries.

FFKM contains Carbon-Fluorine bonds which are regarded as the strongest single bond in organic chemistry. The bond provides strength on an atomic scale, giving the material a high thermal, chemical and oxidation resistance on the finished product. FFKM is the only elastomer to contain no carbon-hydrogen bonds which are considered a weak link for thermal and chemical resistance.

Benefits of TRP Polymer Solutions FFKM include:

• Temperature range from -55°C to +330°C
• Exceptional thermal resistance
• Excellent chemical resistance
• Extremely low permeability
• Versions with FDA approval
• High reliability for static and dynamic applications
• Explosive decompression resistant compounds
• Compounds with 50 to 90 Shore A hardnesses
• Steam resistant compounds

The low-temperature FFMK by TRP Polymer Solutions combines the excellent chemical resistance and compression set resistant with outstanding low-temperature flexibility. It utilizes unique monomer technology to extend the low temperature sealing down to -55OC whilst retaining the best in class chemical resistance.

FFKM max temperature limitations

Repeated exposure to high temperatures can lead to crosslinking structures becoming damaged and elastomeric seals degrading as a result. FFKM seals used beyond their maximum continuous service temperature limit over a prolonged period are likely to become hard and brittle. The capability is finite and care must be taken to monitor and maintain the integrity of your FFKM seals.

Contact TRP Polymer Solutions on 01432 268899 or email [email protected] to discuss your requirements.