PPSU - Polyphenylsulfone 

TECASON P Ensinger Plastics

PPSU material (chemically known as polyphenylsulfone) is manufactured by Ensinger in standard stock shapes for machining, and is most often extruded in sheet and rod using Radel® PPSU polymer.

PPSU plastic is an amorphous material,  which has a high glass transition temperature and low moisture absorption. Furthermore, PPSU material has better impact strength and chemical resistance than PSU and PES from the polysulfone group. Apart from these characteristics, PPSU polymer can withstand sterilisation with superheated steam better than other members of this group of polymers, and is resistant to detergents and disinfectants.

PPSU material properties and specifications

PPSU plastics offer:

  • High operating temperature (180°C)
  • Good chemical compatibility
  • Excellent resistance to hydrolysis (suitable for repetitive steam sterilisation)
  • High rigidity over a wide range of temperatures
  • Very high impact strength
  • High dimensional stability
  • Very good resistance against high energy radiation (gamma and X-rays)
  • Good electrical insulating properties
  • Favourable dielectric characteristics

Manufactured PPSU Materials

PPSU Radel® modifications are manufactured by Ensinger under the tradename TECASON P. The Ensinger TECASON P family offers the following PPSU modifications:
  • TECASON P - PPSU for industrial applications
  • TECASON P MT - PPSU for medical use, biocompatible, different colours
  • TECASON P MT XRO - PPSU for medical use, specially modified to be x-ray opaque, biocompatible


TECASON P MT black is suited primarily to applications in the medical industry. It is just one of the many color options available in this family of products.


TECASON P MT XRO black is a x-ray detectable biocompatible PPSU plastic that meets the challenging demands of image-controlled surgery and ...

Ensinger is a supplier of PPSU shapes such as:

  • PPSU rod
  • PPSU sheet

Radel® is a registered trademark of Solvay SA.

Typical PPSU applications

Medical industry: Test implants/adjustment bodies for hip, knee and shoulder and handles of medical devices