Thermoplastic elastomer powders (flexible copolyesters)

Evonik has developed two new thermoplastic elastomer powders of the INFINAM® TPC brand for powder bed fusion to meet the growing demands of the 3D printing industry.

This high-performance material can be used in selective laser sintering (SLS), high speed sintering (HSS) as well as multi jet fusion (MJF) technologies and is expected to enable additive manufacturing of three-dimensional plastic parts for demanding applications.


The new copolyester powders are highly elastic and flexible, yet exhibit excellent recovery. The powders are available in white or black depending on the application, and are suitable for use in common powder-based 3D printing technologies, such as selective laser sintering (SLS). At processing temperatures, the flow characteristics of the new powder formulations are also impressive, allowing manufacturers to make efficient use of the full installation height of the powder bed during the 3D printing process.

Compared to other flexible materials available on the market for SLS, the new, ready-to-use copolyesters from Evonik remain tough and flexible after printing, with no sacrifice in surface quality.

3D parts are typically produced in white and then dyed depending on the application. In addition to white, Evonik’s new copolyesters are now available as a black powder as well so that parts can be printed directly in that color.

Key material properties of INFINAM® TPC thermoplastic elastomer powders

  • Hardness shore D 45
  • Tough and flexible
  • Good surface finish
  • Great feature resolution
  • High chemical resistance
  • Easy to process or broad processing window
  • Excellent tear strength
  • Impact resistance
  • Cold temperature resistance