FFKM (Perfluoroelastomer)
Overview
Which O-ring/Seal material resists aggressive or corrosive chemicals?
FFKM (perfluoroelastomer) is the most chemically resistant elastomer available for O-rings and seals, offering broader compatibility than FKM, EPDM, or silicone.
Lanson Polymers supplies FFKM in multiple compound grades, including LP-605, LP-617, and LP-635.
FFKM Seals & O-Rings offer the highest operating temperature and the most comprehensive chemical resistance of any elastomer.
Competitive lead times & pricing for FFKM Seals & O-Rings from Lanson Polymers allied with our vast experience in the design & supply of critical seals & components into a variety of markets will allow you to specify the optimum solution for your application.
A wide variety of seals and components can be manufactured using FFKM Materials including:
O-Rings, T-Seals, L-Seals and Cap Seals amongst others.
Common Trade names include Kalrez®, Chemraz®, Perlast®.
Temperature Range
-20°C to +330°C
Lanson Polymers FFKM Compounds
Which Lanson FFKM compound suits high-temperature chemical processing?
LP-605: 77 IRHD – Temperatures up to +260°C – general use compound
LP-617: 75 IRHD – Temperatures up to +330°C
LP-635: 87 IRHD – Temperatures up to +230°C – Rapid Gas Decompression Resistant
Where can I get a datasheet for Lanson’s FFKM compounds?
Please see below for datasheets for the above three compounds – these are only a small sample of our broad range of FFKM materials – please contact us to discuss your particular application and we can recommend an optimum solution.
LP-605 FFKM Rev 4.0
LP-617 FFKM Rev 2.0
LP-635 FFKM Rev 1.0
Applications
Typically used as Seals, O-Rings & other components for long-term reliability in extreme environments.
Seals and O-Rings in pumps, reactors and flange joints
Valve stem packing systems
High-performance parts for aerospace, oil and gas equipment, transportation, and chemical processing
Life science applications
Semiconductor processing
Photovoltaic manufacturing seals
Food contact materials
Features
Highest temperature resistance
Almost universal chemical resistance
Maintains seal integrity
Reduces maintenance and operating costs
Long seal life
Typical temperature range -20˚C to +330˚C
How do Lanson’s compounds compare to Kalrez®, Chemraz®, or Perlast®?
These are branded FFKM materials from other manufacturers. Lanson’s LP-series compounds are formulated and supplied directly by Lanson as suitable alternatives for the same applications: chemical processing, motorsport, oil & gas, life sciences, datacentre cooling systems.
Kalrez® is a Registered Trademark of DuPont
Chemraz® is a Registered Trademark of Greene, Tweed
Perlast® is a Registered Trademark of Precision Polymer Engineering Ltd