Polyethylene Terephthalate Glycol (PETG)

Polyethylene Terephthalate Glycol is a modified thermoplastic from PET with added glycol to improve its printability, strength, and heat resistance

Strength

Flexibility

Durability

Polyethylene Terephthalate Glycol
Polyethylene Terephthalate Glycol

Common Applications

  • Semi-outdoor components
  • Technical prototypes requiring strength and durability
  • Functional containers or boxes
  • Functional equipment: Hinges, brackets, handles, casings

Advantages

  • Resistant to water and chemicals
  • Combination of tensile strength and impact resistance
  • Does not soften easily like PLA
  • Not as sharp as PLA in printing fine details
  • Not very resistant to UV

Disadvantages

  • Less suitable for highly detailed models
  • Not as sharp as PLA in printing fine details
  • Not very resistant to UV

Colors


General Specifications

PropertyValue
Printing Temperature220 - 260°C
Bed Temperature70 - 90°C
Shrinkage RateLow (0.5 - 0.8%)

Physical Properties

PropertyTest MethodValue
DensityISO1183, GB/T10331.25 g/cm³ at 23°C
Melt Index240°C, 2.16kg7-11 g/10min
Light TransmissionGB/T 241090%
Fire ResistanceN/AN/A

Chemical Resistance

EffectValue
Effect from weak acidsGood
Effect from strong acidsPoor
Effect from weak basesFair
Effect from strong basesPoor
Effect from oils and lubricantsGood

Thermal Properties

PropertyTest MethodValue
Glass transition temperatureDSC, 10°C/min81°C
Melting temperatureDSC, 10°C/minN/A
Crystallization temperatureDSC, 10°C/minN/A
Decomposition temperatureTGA, 20°C/minN/A
Vicat softening temperatureISO 306, GB/T 163384°C
Heat deflection temperatureISO 75 1.8MPa75°C
Heat deflection temperatureISO 75 0.45MPa78°C

Mechanical Properties

PropertyTest MethodValue
Young's Modulus (X-Y)ISO 527, GB/T 10402116.8 ± 68.1 MPa
Tensile Strength (X-Y)ISO 527, GB/T 104050.8 ± 0.9 MPa
Elongation at Break (X-Y)ISO 527, GB/T 10408.4 ± 1.7 %
Flexural Modulus (X-Y)ISO 178, GB/T 93411898.5 ± 35.5 MPa
Flexural Strength (X-Y)ISO 178, GB/T 934169.6 ± 0.8 MPa
Charpy Impact Strength (X-Y)ISO 179, GB/T 10432.6 ± 0.2 kJ/m²

Last updated: 6/15/2025

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