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Perlast Perfluoroelastomers

Perfluoroelastomer (FFKM) is the most chemically resistant elastomer available and is effectively a rubber form of PTFE. Perlast® perfluoroelastomer grades provide additional properties which prove most valuable in critical sealing applications where purity, high temperatures and retention of sealing force are paramount.


The Perlast® range of perfluoroelastomer materials are at the leading edge of polymer technology. They have been developed by PPE to offer superior sealing solutions with enhanced performance and improved functionality, which has been proven in the field for over 20 years. Perlast® parts are manufactured exclusively by PPE, including O-rings, sanitary gaskets and spring seals.

If you are having problems sourcing FFKM sealing products from your existing supplier, check out the reasons why you should consider Perlast®.  There's a handy cross reference table of FFKM grades to get you started.

Features of Perlast® FFKM seals include:

  • Availability - FFKM O-rings manufactured to order in approximately 30 days*
  • High temperature stability up to 350°C (662°F)
  • Almost universal chemical resistance
  • Outstanding mechanical properties
  • High purity materials for reduced process contamination for semiconductor applications
  • FDA, USP Class VI and 3A 18-03 compliance for food and pharmaceutical applications
  • AMS 7257E compliance for aerospace applications
  • Rapid Gas Decompression (RGD) resistant materials for high pressure environments for oil and gas applications

*dependant on size, quantity and tooling availability

For sealing applications that require all of the above features and benefits with the addition of exceptional low temperature capability consider Perlast® ICE perfluoroelastomers.

How can we help?
Contact us to discuss your FFKM sealing requirements.

Perlast® is a registered trademark of Precision Polymer Engineering Ltd

Send us your requirements

Perlast® perfluoroelastomer O-rings can be shipped same day from stock or manufactured to order in approx 30 days*

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Perlast Applications

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