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SUMIKAEXCEL™ PES (Polyethersulphone) has the highest heat resistance amongst amorphous thermoplastic. Its flexural modulus is very stable at temperatures ranging from -100° to +200° C. In particular, at temperatures of 100° C or greater, SUMIKAEXCEL™ PES shows the highest flexural modulus among most thermoplastic resins.


  • High temperature stability
  • High creep resistance
  • Dimensionally stable
  • Excellent hot water resistance
  • Excellent chemical resistance
  • Low out-gassing
  • Low smoke evolution
  • Inherently flame retardant – UL-V0

Product Characterization:

  • Aerospace
  • Consumer
  • Automotive
  • Medical
  • Life Sciences
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UL Information:

Data Sheets:

For information regarding Sumitomo Chemical’s Super Engineering Plastics please contact anyone below for all products and applications:

Edson Ito
Director of Advanced Polymer Technology
Phone: (602) 659-2508
[email protected]

Anthony Verrocchi
Technical Business Manager, Advanced Polymers Division
Phone: (859) 304-2089
[email protected]

Deanne Burke
Business Operations Specialist
Phone: (602) 659-2532
[email protected]

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