Detectable food grade PBT polyester

TECADUR PBT UD blue is the European version of the American HYDEX 4101 UD blue. The two are identical in composition and have been specifically designed for the demanding environment of the food processing industry. For several years, the industry has been moving towards materials used in equipment design that are detectable in some way; either visually, by metal or x-ray detection, in order to improve food safety, and reduce the possibility of product contamination. TECADUR PBT UD blue, a member of Ensinger's Ultra Detectable product family, offers visibility for all three detection types with one material. This multi-detectable plastic with specially formulated fillers is detectable to both x-ray and metal detection systems, and its blue coloration is visible to optical inspection systems. In addition, as part of the polyester family, the ultra-detectable HYDEX exhibits the very good physical properties typical of the family, as well as excellent resistance to chlorine and caustic cleaning solutions. As a food safe material it complies with FDA (raw material) and EU 10/2011. It also meets most agency requirements for food contact compliance.



Chemical designation
PBT (Polybutylene terephthalate)
1,56 g/cm3

Main Features

  • resistent to cleaning agents
  • good chemical resistance
  • food grade blue
  • good dimensional stability
  • good impact strength
  • metal detectable
  • x-ray opaque

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Impact strength (Charpy)37kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Compression strength22/41/77MPa1% / 2% / 5%EN ISO 604
    Modulus of elasticity
    (flexural test)
    3400MPa2mm/min, 10 NDIN EN ISO 178
    Flexural strength98MPa2mm/min, 10 NDIN EN ISO 178
    Elongation at break9%50mm/minDIN EN ISO 527-2
    Tensile strength at yield62MPa50mm/minDIN EN ISO 527-2
    Tensile strength62MPa50mm/minDIN EN ISO 527-2
    Notched impact strength (Charpy)4kJ/m2max. 7,5JDIN EN ISO 179-1eA
    Elongation at yield7%50mm/minDIN EN ISO 527-2
    Ball indentation hardness147MPaISO 2039-1
    Compression modulus1600MPa5mm/min, 10 NEN ISO 604
    Modulus of elasticity
    (tensile test)
    3500MPa1mm/minDIN EN ISO 527-2
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Melting temperature224CDIN EN ISO 11357
    Service temperature110Clong termNN
    Thermal expansion (CLTE)810-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Service temperature200Cshort termNN
    Thermal expansion (CLTE)1010-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Glass transition temperature39CDIN EN ISO 11357
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.05%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