PET Resin

PET 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.

MaterialPET
Chemical NamePolyethylene Terephthalate (Polyester)
StructureCrystalline/Amorphous
OpacityClear or Opaque
StrengthRigid Stable
Specific Gravity1.34
Shrinkage2.1% to 2.5%
Melting Point482° F
 Deflection Temperature158° F – 176° F
Service Temperature165° F

Applications

PET resin is the world’s most common packaging choice for food and beverages. Other common applications for this engineering resin are:

  • Highly-Stressed Engineering Parts
  • Structural Automotive Components
  • Electrical Connectors
  • Alternator Housings
  • Motor Housings
  • Pump Housings
  • Switches
  • Hand Tools
AdvantagesPET resin is a clear, strong and lightweight plastic belonging to the polyester family. Other PET resin advantages are:

  • Lightweight
  • High Stiffness & Strength
  • Good Heat Aging Performance
Disadvantages
  • Not Suitable for Hot Water Service
  • Post-Mold Warpage & Stress Cracking is Possible
  • Slow Cycle Times