TECAPEI™ GF30 Nat (Sabic Ultem®2300 Series)

PEI filled with 30% glass fiber

This is a special 30% glass fiber reinforced PEI, manufactured by Ensinger under the tradename TECAPEI GF30 natural. In comparison to unfilled PEI (TECAPEI natural), PEI GF30 demonstrates high rigidity, very high mechanical strength, as well as extremely good dimensional stability, and good resistance to high energy radiation. These properties make PEI with 30% glass fibers suitable for use in parts that are exposed to high static loads over long periods in high temperature conditions.



Chemical designation
PEI (Polyetherimide)
1,51 g/cm3

Main Features

  • high thermal and mechanical capacity
  • high dielectric strength
  • excellent strength and stiffness
  • excellent tensile strength
  • easy to machine
  • inherent flame resistance

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitConditionTest Method
    Tensile strength at break18,000psi@ 73 °FASTM D 638
    Modulus of elasticity
    (tensile test)
    800,000psi@ 73 °FASTM D 638
    Elongation at break (tensile test)3%@ 73 °FASTM D 638
    Flexural strength28,000psi@ 73 °FASTM D 638
    Modulus of elasticity
    (flexural test)
    800,000psi@ 73 °FASTM D 790
    Impact strength (Izod)1.1ftlbsin@ 73 °FASTM D 256
    Rockwell hardness110-M ScaleASTM D 785
    Compression strength26,000psi10% strainASTM D 695
    Compression modulus390,000psi@ 73 °FASTM D 695
    Shear strength14,500psi@ 73 °F, ASTM D732-
    Compression strength3,700psi1% strainASTM D 695
    Compression strength18,000psi5% strainASTM D 695
  • Thermal properties
    Thermal propertiesValueUnitConditionTest Method
    Deflection temperature414F@ 66 psi, 1/4"ASTM D 648
    Deflection temperature409F@264 psi, 1/4ASTM D 648
    Thermal expansion (CLTE)1.1*10-5ininFASTM D 696
    Thermal conductivity1.56BTU-in/hr-ft^2 - degASTM D 2214
    Service temperature392Fshort term-
    Service temperature356FLong Term-
  • Electrical properties
    Electrical propertiesValueUnitConditionTest Method
    Dielectric constant3.7-@ 1kHz, 50% RHASTM D 150
    Dielectric strength630V/milIn OilASTM D 149
    Dielectric strength770V/milIn AirASTM D 149
    Dissipation factor0.0015%@ 1kHz, 50% RH, 73°FASTM D 150
    Volume resistivity3.0*1016O*cm1/16"ASTM D 257
  • Other properties
    Other propertiesValueUnitConditionTest Method
    Flammability (UL94)V0--
    Moisture absorption0.16%@ 24 hrs, 73 °FASTM D 570
    Moisture absorption0.90%@ saturation, 73 °FASTM D 570
    Flammabilitypass-6 mmFAR 25.853

Stock program