TECADUR PBT GF30 natural

PBT 30% glass fibre reinforced

PBT GF30 natural is a special 30% glass fibre reinforced product that is produced by Ensinger under the trade name TECADUR PBT GF30. In comparison to TECADUR PBT, this material demonstrates optimized properties in a number of areas. PBT GF30 glass filled has a very high rigidity, high mechanical strength, high creep strength and a very high dimensional stability. It is capable of meeting precision requirements for parts with tight tolerances. These material properties make this glass filled polyester suitable for use in parts which are exposed to high static loads over long periods in high temperature conditions. As glass fibres tend in some cases to have a marked abrasive effect on mating surfaces, modified TECADUR PBT GF30 is less suitable for sliding applications.


Chemical designation
PBT (Polybutylene terephthalate)
1,46 g/cm3

Main Features

  • very high strength
  • high dimensional stability
  • good chemical resistance
  • very high stiffness
  • good weldable and bondable
  • not hot water resistant over 60°C

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (tensile test)
    3400MPa1mm/minDIN EN ISO 527-2
    Tensile strength46MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield46MPa50mm/minDIN EN ISO 527-2
    Elongation at yield5%50mm/minDIN EN ISO 527-2
    Elongation at break6%50mm/minDIN EN ISO 527-2
    Flexural strength78MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    3400MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength20/38/76MPa1% / 2% / 5%EN ISO 604
    Compression modulus2800MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)37kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Ball indentation hardness115MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Melting temperature224CDIN EN ISO 11357
    Service temperature200Cshort termNN
    Service temperature110Clong termNN
    Thermal expansion (CLTE)810-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)1010-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Thermal conductivity0.33W/(k*m)ISO 22007-4:2008
    Specific heat1.2J/(g*K)ISO 22007-4:2008
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1014ODIN IEC 60093
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.04%24h / 96h (23°C)DIN EN ISO 62
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;
    Resistance to hot water/ bases---
    Resistance to weathering--NN

Stock program