HYDEX® 4101 UD Blue (TECADUR PBT UD blue)

detectable pbt polyester

HYDEX 4101 UD blue has 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. HYDEX 4101 UD blue, a memeber of Ensinger's Ultra-detectable product family, offers visibility for all three detection types with one material.
This multi-detectable plastic product’s specially formulated fillers are 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, HYDEX 4101 UD blue exhibits the very good physical properties typical of the family, as well as excellent resistance to chlorine and caustic cleaning solutions.  It is a food grade plastic material that can meet most agency requirements for food contact compliance.



Chemical designation
PBT (Polybutylene terephthalate)
1.59 g/cm3

Main Features

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

Target industries

Technical details

  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Condition Test Method
    Tensile strength 9,300 psi @ 73 °F ASTM D 638
    Elongation at break (tensile test) 3.53 % @ 73 °F ASTM D 638
    Modulus of elasticity
    (tensile test)
    550,000 psi @ 73 °F ASTM D 638
    Flexural strength 15,250 psi @ 73 °F ASTM D 790
    Modulus of elasticity
    (flexural test)
    556,150 psi @ 73 °F ASTM D 790
    Compression strength 13,760 psi @ 73 °F, 10% strain ASTM D 695
    Compression modulus 346,360 psi @ 73 °F ASTM D 695
    Impact strength (Izod) 0.58 ftlbsin Notched ASTM D 256
    Rockwell hardness 92 - M-Scale ASTM D 785
    Compression strength 3,200 psi @ 73 °F, 1% strain ASTM D 695
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Condition Test Method
    Deflection temperature 393 F @ 66 psi ASTM D 648
    Deflection temperature 275 F @ 264 °F ASTM D 648
    Thermal expansion (CLTE) 4.05 *10^-5 in/in / degre ASTM D 696
    Service temperature 221 F Long Term -
    Melting temperature 437 F -
  • product-technical-detail-collapse-item-2-lvl-1
    Other properties Value Unit Condition Test Method
    Moisture absorption 0.2 % @24 hr, 73 °F ASTM D 570

Stock program