PES Resin

PES Resin Properties & Uses

To avoid improper resin selection, Contact PMC for additional help in determining the exact engineering resin required for your application.

Please Note: PMC does not sell the material listed below.  We only use the material list to inform visitors that we are experienced in processing  these materials for many fine products.

Chemical NamePolyether Sulphone
StrengthVery Tough
Specific Gravity1.37
Shrinkage0.67% to 0.75%
Melting Point446° F
 Deflection Temperature399° – 417° F
Service Temperature374° F


PES resin is commonly used for applications such as:

  • High Temperature Metal Replacement
  • Medical
  • Automotive
  • Electrical
AdvantagesPolyether Sulfone is a thermoplastic polymer similar to PSU. It is very tough and exhibits exceptional stability at high temperatures. Other PES resin advantages include:

  • High Strength
  • Low Moisture Absorption
  • Very High Surface Temperature Limits
  • Low Creep
  • Good Electrical Characteristics
  • Self-Extinguishing Ability
  • Resistant to Common Greases, Many Solvents & Chemicals
  • Good Transparency
  • Exceptional Stability at High Temperatures
  • Chemical & Heat Resistant
  • Attacked by Some Solvents
  • Poor Weatherability
  • Subject to Stress Cracking
  • Difficult to Process
  • High Cost