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Perlast perfluoroelastomers for aerospace applications

Perlast® G77X is a brand new perfluorocarbon (FFKM) material specifically developed for critical aerospace sealing applications, such as:-

  • Aircraft engines
  • Hydraulic systems
  • De-icing systems/equipment
  • Cabin air systems



Features of Perlast® G77X
  • Unrivalled high temperature capability (up to 350°C)
  • Excellent response to temperature cycling effects
  • Exceptionally low compression set over extended periods
  • Excellent seal force retention properties 
  • Excellent mechanical properties
  • Good chemical resistance to fuels, oil and hydraulic fluids
  • Tested and compliant with AMS 7257 Rev. E (will appear on the PRI-QPL database very soon)


Benefits of Perlast® G77X
  • Process enabling step change in high temperature capability
  • Superior durability & seal life in high temperature applications
  • Reliable performance in temperature cycling applications
  • Increased safety margin (temperature)
  • Extended maintenance intervals or MTBR (Mean Time Between Repair)
  • Reduced cost of ownership

 PPE is Nadcap and AS9100 audited and certified, NCAGE number U6183.


Need more info?  We have lots of test data on mechanical properties such as compression set (up to 1000 hours), compressive stress relaxation and chemical compatibility of this material grade.  Contact us to find out more.

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Document Description Download
Test Results AMS7257E (G77X) Download File
Certificate Nadcap Download File
Certificate AS9100 Download File
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