Flexible Polymers

3D Printing Elastomers - TPU for SLS 3D Printer

Materials of the TPE polymer class have similar properties to elastomers – this means that they are flexible at room temperature but still remain dimensionally stable. When heated, they can be plastically deformed and processed like thermoplastics. Since they are easy to process, they can be used to replace cross-linked elastomers and soft PVC. 

Fields of Application

TPEs can for example be used to make damping elements, bumpers, bellows, soles, handles and hoses.

Typical Part Properties

  • Tensile Modulus 60 MPa
  • Tensile Strength 7 MPa
  • Elongation at Break 250 %
  • Melting Temperature (20°C/min) 138 °C
  • Density 1080 kg/m³


EOS TPU 1301

The parts made from this white material are extremely hydrolysis-resistant, with high resilience and good tribological properties. The part design influences the degree of flexibility of the parts purposeful.


  • Great resilience
  • Good hydrolysis resistance
  • High UV-stability
  • Very good shock absorption
  • Shore hardness 86 A
  • Low refresh rate

Typical Applications

  • Footwear & lifestyle parts that demand elastomeric properties, e. g. handles, shoe soles
  • Automotive & industry parts, e.g. tubes, bellows, seals, gaskets
  • Protective sports gear, e.g. helmet cushioning
  • Applications usually made from foam can be replaced by lattice structures in EOS TPU 1301
Take-back Program for Used Polymer Materials & Parts
VIRTUCYCLE® takes back used polymer material and components, using 100 % sustainably sourced energy to transform powder into recycled high-performance injection molding granules. EOS carried out a Life Cycle Analysis, externally verified by TÜV Süd, which confirmed that 1 kg of polymer material converted into granules saves approximately 7 kg of CO2e compared to the raw material, in order to verify the positive impact of this recycling program.
Polymer part and powder heap | © EOS