TECAPEEK ® GF30 natural

PEEK 30% glass fiber reinforced

This is a special 30% glass filled PEEK modification that Ensinger manufactures under the name TECAPEEK GF30 natural. In comparison to unfilled PEEK, this glass fiber reinforced material exhibits increased mechanical strength and high rigidity. Furthermore, improved creep strength and dimensional stability are achieved by this glass filled PEEK. These properties make this material suitable for use in parts which are exposed to high static loads over long periods in high temperature conditions. As glass fibers tend in some cases to have a marked abrasive effect on mating surfaces, TECAPEEK GF30 is less suitable for bearing or wear applications. TECAPEEK GF30 offers excellent chemical resistance, is insoluble in all common solvents, and exhibits superior resistance to high doses of gamma radiation. As with all PEEK grades, PEEK GF30 combines high thermal stability with minimal thermal expansion and very low moisture absorption.



Chemical designation
PEEK (Polyetheretherketone)
1,53 g/cm3

Main Features

  • good heat deflection temperature
  • very good chemical resistance
  • very high creep resistant
  • hydrolysis and superheated steam resistant
  • inherent flame resistance
  • very high stiffness
  • high dimensional stability
  • resistance against high energy radiation

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitConditionTest Method
    Tensile strength at yield15,000psi@ 73 °FASTM D 638
    Modulus of elasticity
    (tensile test)
    1,000,000psi1% Sec, @ 73 °FASTM D 638
    Elongation at break (tensile test)2.2%@ 73 °FASTM D 638
    Flexural strength24,000psi@ 73 °FASTM D 790
    Modulus of elasticity
    (flexural test)
    1,000,000psi@ 73 °FASTM D 790
    Compression strength25,000psi@ 10% strain, 73 °FASTM D 695
    Shear strength14,100psi@ 73 °F-
    Impact strength (Izod)1.8ftlbsin@ 73 °FASTM D 256
    Rockwell hardness103-M ScaleASTM D 785
    Coefficient of friction0.28-@ 68 °F, Static, 50 psiASTM D 3702
    Tensile strength at break15,000psi@ 73 °FASTM D 638
    Compression modulus696,000psi@ 73 °FASTM D 695
    Coefficient of friction0.30-@ 68 °F, Dynamic, 40 psi, 50 fpmASTM D 3702
    Wear (K) factor90*10-10in3minftlbshr@ 68 °F, 40 psi, 50 fpmASTM D 3702
  • Thermal properties
    Thermal propertiesValueUnitConditionTest Method
    Deflection temperature600F@264 psi, 1/4ASTM D 648
    Service temperature500FLong Term-
    Melting temperature633F-
    Thermal expansion (CLTE)1.2*10-5ininF< Tg, along flowDIN EN ISO 11359-1;2
    Thermal conductivity2.08BTU-in/hr-ft^2 - degISO 22007-4:2008
    Service temperature572Fshort term-
  • Electrical properties
    Electrical propertiesValueUnitConditionTest Method
    Volume resistivity1.0*1016O*cm@ 73 °FASTM D 149
    surface resistivity1.0*1016Ohm/squareASTM D 257
    Dielectric strength790V/mil0.1ISO 60243-1
    Dielectric constant3.2-@ 73 °F, 1 kHzDIN IEC 60250
    Dissipation factor0.005-@ 73 °F, 1 MHzDIN IEC 60250
  • Other properties
    Other propertiesValueUnitConditionTest Method
    Moisture absorption0.2%@ 24 hrs, 73 °FASTM D 570
    Flammability (UL94)V0--
    Moisture absorption0.3%@ saturation, 73°FASTM D 570

Stock program