TECASON S natural

PSU unfilled

TECASON S - PSU - is a transparent engineering plastic known for its chemical resistance, rigidity, and high-temperature performance. The polysulfone material's ability to operate in an autoclave environment while maintaining its excellent mechanical properties over a wide range of temperatures is one of this product's most beneficial performance characteristics.



Chemical designation
PSU (Polysulfone)
1,24 g/cm3

Main Features

  • good heat deflection temperature
  • high strength
  • high stiffness
  • high dimensional stability
  • electrically insulating
  • resistance against high energy radiation
  • good weldable

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Notched impact strength (Charpy)4kJ/m2max. 7,5JDIN EN ISO 179-1eA
    Impact strength (Charpy)175kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Compression modulus2300MPa5mm/min, 10 NEN ISO 604
    Compression strength15/28/75MPa1% / 2% / 5%EN ISO 604
    Modulus of elasticity
    (flexural test)
    2600MPa2mm/min, 10 NDIN EN ISO 178
    Elongation at break (tensile test)15%50mm/minDIN EN ISO 527-2
    Flexural strength122MPa2mm/min, 10 NDIN EN ISO 178
    Elongation at yield5%50mm/minDIN EN ISO 527-2
    Tensile strength at yield89MPa50mm/minDIN EN ISO 527-2
    Tensile strength89MPa50mm/minDIN EN ISO 527-2
    Modulus of elasticity
    (tensile test)
    2700MPa1mm/minDIN EN ISO 527-2
    Ball indentation hardness167MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Thermal expansion (CLTE)610-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)610-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Service temperature160Clong termNN
    Service temperature180Cshort termNN
    Melting temperaturen.a.CDIN EN ISO 11357
    Glass transition temperature188CDIN EN ISO 11357
    Specific heat1.2J/(g*K)ISO 22007-4:2008
    Thermal conductivity0.21W/(k*m)ISO 22007-4:2008
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1014ODIN IEC 60093
    volume resistivity1014O*cmDIN IEC 60093
  • Other properties
    Other propertiesValueUnitParameterNorm
    Resistance to weathering---
    Resistance to hot water/ bases+--
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;
    Water absorption0.1%24h / 96h (23°C)DIN EN ISO 62

Stock program