Thermoplastic Polyurethane (TPU)

Thermoplastic Polyurethane is polyurethane chains that combine the elasticity of rubber with the strength of engineering plastics

Strength

Flexibility

Durability

Thermoplastic Polyurethane
Thermoplastic Polyurethane

Common Applications

  • Seals, gaskets, and flexible joints
  • Mini tires, soft wheels, or small robot wheels
  • Flexible toys or wearables like straps
  • Smartphone cases, corner protectors, bumpers
  • Medical or ergonomic tools

Advantages

  • Flexible and bendable, can be bent and compressed
  • Wear and abrasion resistant
  • Does not break or crack easily

Disadvantages

  • Not suitable for high-precision parts
  • Somewhat rough surface or difficult to finish

Colors


General Specifications

PropertyValue
Printing Temperature200 - 230°C
Bed Temperature25 - 60°C
Shrinkage RateVery low (0.2%)

Physical Properties

PropertyTest MethodValue
DensityISO1183, GB/T10331.20-1.24 g/cm³ at 23°C
Melt Index210°C, 1.2 kg3-6 g/10min
Light TransmissionN/AN/A
Fire ResistanceN/AN/A

Chemical Resistance

EffectValue
Effect from weak acidsNot resistant
Effect from strong acidsNot resistant
Effect from weak basesNot resistant
Effect from strong basesNot resistant
Effect from oils and lubricantsN/A

Mechanical Properties

PropertyTest MethodValue
Young's Modulus (X-Y)ISO 37, GB/T 52829 ± 2.8 MPa
Elongation at Break (X-Y)ISO 37, GB/T 528330.1 ± 14%
Shore HardnessISO 7619-1, GB/T 53195A

Last updated: 6/15/2025

Material

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