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Perlast perfluoroelastomers for mechanical seal applications

Perlast® G77X is a new perfluoroelastomer (FFKM) material specifically developed to offer the ultimate O-ring performance in mechanical seals used in rotating equipment.




Features of Perlast® G77X
  • Unrivalled high temperature capability (up to 350°C)
  • Excellent response to temperature cycling effects
  • Industry-leading low compression set over extended periods
  • Superior sealing force at high temperatures >300°C
  • Excellent mechanical properties
  • Good chemical resistance to a broad range of media


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


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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