TECASINT 1011 natural

unfilled polyimide

TECASINT 1011 is an unfilled polyimide natural grade. This material particularly stands out in the TECASINT 1000 product family for very high strength and elongation. It is characterised by properties such as a very high modulus of elasticity, high rigidity, high degree of hardness and low thermal and electrical conductivity. These are accompanied by high purity and low outgassing in accordance with ESA regulation ECSS-Q-70-20. Its previous name was SINTIMID Pur HT.


Chemical designation
PI (Polyimide)
Alternative colours available

1,34 g/cm3

Main Features

  • very good thermal stability
  • high thermal and mechanical capacity
  • very good electrical insulation
  • good chemical resistance
  • resistance against high energy radiation
  • low outgassing
  • high creep resistance
  • sensitive to hydrolysis in higher thermal range

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Notched impact strength (Charpy)5kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1eA
    Impact strength (Charpy)75.8kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1eU
    Shore hardness90DShore D, 23°CDIN 53505
    Tensile strength116MPa50 mm/min, 23°CDIN EN ISO 527-1
    Elongation at break3,8%50 mm/min, 23°CDIN EN ISO 527-1
    Modulus of elasticity
    (tensile test)
    3600MPa1 mm/min, 23°CDIN EN ISO 527-1
    Flexural strength170MPa10 mm/min, 23°CDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    3700MPa2 mm/min, 23°CDIN EN ISO 178
    Compression strength500MPa10 mm/min, 23°CEN ISO 604
    Compression modulus2000MPa1 mm/min, 23°CEN ISO 604
    Elongation at break6%10 mm/min, 23°CDIN EN ISO 178
    Compression strength190MPa10mm/min, 10% strain, 23°CEN ISO 604
    Compressive strain at break45%10 mm/min, 23°CEN ISO 604
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature368C-
    Heat distortion temperature368C1.85 MPaDIN 53 461
    Service temperatureClong term-
    Thermal expansion (CLTE)4.310-5*1/K50-200°CDIN 53 752
    Thermal expansion (CLTE)5.310-5*1/K200-300°CDIN 53 752
    Specific heat1.04J/(g*K)-
    Thermal conductivity0.22W/(k*m)40°CISO 8302
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1016O23°CDIN IEC 60093
    volume resistivity1017O*cm23°CDIN IEC 60093
    Dielectric constant3.5-50 Hz, 23°CDIN IEC 60250
    Dielectric constant3.1-27 MHz, 23°CDIN IEC 60250
    Electric strength DC20kV*mm-123°CISO 60243-1
    Dielectric loss factor1*10-3-50 Hz, 23°CDIN 53483-1
    Dielectric loss factor3*10-3-27 MHz, 23°CDIN 53483-1
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption1.08%24 h in water, 23°CDIN EN ISO 62
    Water absorption3.29%24 h in water, 80°CDIN EN ISO 62
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;

Stock program