PEI Resin

PEI Resin Properties & Uses

To avoid improper resin selection, Contact PMC for additional help in determining the exact engineering resin required for your application.
Material PEI
Chemical Name Polyetheretherketone
 Structure Amorphous
Opacity Amber – Transparent
Strength Strong
Specific Gravity 1.27
Shrinkage 0.85% – 1.1%
Melting Point 424°F – 464°F
 Deflection Temperature 392°F – 446°F
Service Temperature 338°F

Applications

PEI resin is ideal fro applications that require high physical strength, high temperature stability, excellent electrical insulation properties, and where flame retardance is needed. Some common applications for PEI resin include:

  • Automotive Exterior
  • Automotive Interior
  • Appliance Housings
  • Bearings
  • Metal Replacements/Alternatives
  • Medical Devices
Advantages
  • Cost-Effective PEEK Alternative
  • Heat Resistant
  • Low Coefficient of Thermal Expansion
Disadvantages
  • Lower Impact Strength than PEEK
  • Notch-Sensitive
  • High Processing Temperatures Required
  • Attacked by Strong Bases & Partially Halogenated Solvents
  • Limited Colorability

For the most up-to-date information on engineering-grade resins, please visit: https://plastics.ulprospector.com/.

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