TECASINT 4011 natural

unfilled polyimide

Compared with the other TECASINT materials the TECASINT 4000 series exhibits very low moisture absorption and high oxidative stability along with improved chemical resistance. Despite its high strength, TECASINT 4011 has high elongation at break and toughness. Rigidity and modulus are significantly increased vis-a-vis conventional polyimides in a temperature range up to 260°C. It also has minimal thermal and electrical conductivity. The plastic is highly pure and displays low outgassing in accordance with ESA regulation ECSS-Q-70-20.


Chemical designation
PI (Polyimide)
1,42 g/cm3

Main Features

  • very high thermal and oxidative resistance
  • very low water absorption
  • high thermal and mechanical capacity
  • high creep resistance
  • low outgassing
  • good chemical resistance
  • resistance against high energy radiation
  • sensitive to hydrolysis in higher thermal range

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Notched impact strength (Charpy)9.6kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1
    Impact strength (Charpy)87kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1
    Shore hardness88-Shore D, 23°C-
    Tensile strength130MPa50 mm/min, 23°CDIN EN ISO 527-1
    Elongation at break (tensile test)4.5%50 mm/min, 23°CDIN EN ISO 527-1
    Modulus of elasticity
    (tensile test)
    4300MPa1 mm/min, 23°CDIN EN ISO 527-1
    Flexural strength180MPa10 mm/min, 23°CDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4000MPa2 mm/min, 23°CDIN EN ISO 178
    Compression strength30MPa10 mm/min, 1% strain, 23°CEN ISO 604
    Compression modulus2100MPa1 mm/min, 23°CEN ISO 604
    Elongation at break (tensile test)6.0%10 mm/min, 23°CDIN EN ISO 178
    Compression strength185MPa10mm/min, 10% strain, 23°CEN ISO 604
    Ball indentation hardness265MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature260CDIN EN ISO 11357
    Heat distortion temperature360C1.82 MPaASTM D 648
    Thermal expansion (CLTE)5.610-5*1/K50-200°CDIN 53 752
    Thermal expansion (CLTE)7.610-5*1/K200-300°CDIN 53 752
    Thermal expansion (CLTE)11.210-5*1/K300-350°CDIN 53 752
    Specific heat1.22J/(g*K)ASTM E1461
    Thermal conductivity0.4W/(k*m)40°CASTM E1461
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1016O23°CASTM D 257
    volume resistivity1016O*cm23°CASTM D 257
    Dielectric constant3.59-1 kHz, 23°CASTM D 150
    Electric strength DC18kV*mm-123°CASTM D 149
    Dielectric loss factor1*10-3-1 kHz, 23°CASTM D 150
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.16%24 h in water, 23°CDIN EN ISO 62
    Water absorption0.6%24 h in water, 80°CDIN EN ISO 62
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;
    Oxygen Index49%EN ISO 4589-2

Stock program