PET (Polyethylene Terephthalate)

PET is a high-performance polyester offering excellent clarity, strength, and barrier properties. Available in various grades including glass-filled versions for enhanced mechanical properties.

PET (Polyethylene Terephthalate)

PET (Polyethylene Terephthalate) Material Properties

Mechanical Properties

  • High tensile strength
  • Good impact resistance
  • Excellent dimensional stability
  • Good wear resistance
  • High stiffness
  • Good fatigue resistance

PET (Polyethylene Terephthalate) Thermal Properties

  • Heat deflection temperature: 65-80°C
  • Crystalline melting point: 255°C
  • Good thermal stability
  • Low thermal expansion

PET (Polyethylene Terephthalate) Processing Properties

  • Good processability
  • Crystallization control important
  • Good flow properties
  • Requires drying
  • Suitable for stretch blow molding
  • Good for fiber production

PET (Polyethylene Terephthalate) Parts Manufacturing Processes

Injection Molding

Excellent

Advantages

  • High clarity
  • Good strength
  • Barrier properties
  • Recyclable

Key Parameters

melt temperature: 260-290°C
mold temperature: 10-40°C
injection pressure: 80-120 MPa

CNC Machining

Good

Advantages

  • Good machinability
  • High strength
  • Clear parts possible
  • Tight tolerances

Key Parameters

cutting speed: 200-300 m/min
feed rate: 0.1-0.2 mm/rev
tool type: Carbide tools

3D Printing

Moderate

Advantages

  • Good strength
  • Clear parts possible
  • Recyclable
  • Design freedom

Key Parameters

nozzle temperature: 245-270°C
bed temperature: 70-85°C
layer height: 0.1-0.2mm

PET (Polyethylene Terephthalate) Technical Specifications

density

1.33-1.45 g/cm³

water absorption

0.2-0.3%

tensile strength

55-75 MPa

flexural modulus

2500-3100 MPa

impact strength

40-60 J/m

heat deflection

65-80°C

crystalline melt point

255°C

barrier properties

Excellent O2 and CO2 barrier

Processing Guidelines

molding temperature

260-290°C

mold temperature

10-40°C

drying conditions

120-140°C for 4-6 hours

injection pressure

80-120 MPa

recommended thickness

0.5-4.0 mm

PET (Polyethylene Terephthalate) Parts Industry Applications

Packaging

  • Beverage bottles
  • Food containers
  • Cosmetic packaging
  • Industrial packaging

Industrial

  • Conveyor components
  • Pump housings
  • Gears
  • Structural parts

Electronics

  • Electrical components
  • Switch housings
  • Coil formers
  • Connector bodies

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Contact our team to discuss your PET (Polyethylene Terephthalate) manufacturing needs