TECASINT 1021 black

polyimide with 15 % graphite

TECASINT 1021 black has been developed from the base polymer TECASINT 1011 natural. Unlike TECASINT 1011, however, it contains 15% graphite. The material has improved friction and wear properties for tribological applications. TECASINT 1021 is suitable for both lubricated and dry applications since it is self lubricating.


Chemical Designation:
PI (Polyimide)
1,41 g/cm3

Main Features:

  • very good thermal stability
  • very good slide and wear properties
  • good wear resistance
  • good chemical resistance
  • high thermal and mechanical capacity
  • resistance against high energy radiation
  • high creep resistance
  • sensitive to hydrolysis in higher thermal range

Target Industries:


Technical Details

  • Mechanical properties
    Mechanical propertiesValueUnitParamsNorm
    Notched impact strength (Charpy)3.7kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1
    Impact strength (Charpy)34kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1
    Shore hardness88-Shore D, 23°C-
    Tensile strength97MPa50 mm/min, 23°CDIN EN ISO 527-1
    Elongation at break3.2%50 mm/min, 23°CDIN EN ISO 527-1
    Modulus of elasticity
    (tensile test)
    4000MPa1 mm/min, 23°CDIN EN ISO 527-1
    Flexural strength150MPa10 mm/min, 23°CDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4000MPa2 mm/min, 23°CDIN EN ISO 178
    Compression strength210MPa10 mm/min, 23°CEN ISO 604
    Compression modulus1880MPa1 mm/min, 23°CEN ISO 604
    Elongation at break4.0%10 mm/min, 23°CDIN EN ISO 178
    Compression strength175MPa10mm/min, 10% strain, 23°CEN ISO 604
    Compressive strain at break20.1%10 mm/min, 23°CEN ISO 604
  • Thermal properties
    Thermal propertiesValueUnitParamsNorm
    Glass transition temperature353C-
    Heat distortion temperature300C1.85 MPaDIN 53 461
    Service temperature-Clong-term-
    Thermal expansion (CLTE)10-5*1/K50-200°CDIN 53 752
    Specific heat1.16J/(g*K)-
    Thermal conductivity0.80W/(k*m)40°CISO 8302
  • Other properties
    Other propertiesValueUnitParamsNorm
    Water absorption0.78%24 h in water, 23°CDIN EN ISO 62
    Water absorption1.57%24 h in water, 80°CDIN EN ISO 62
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;

Stock program