Thermx® polycyclohexylene dimethylene terephthalate (PCT) combines the chemical resistance, processability and dimensional stability of PBT or PET with the added resistance to peak temperatures and hydrolysis to deliver superior performance and value through fast molding cycles and excellent processability.

Product Properties:

  • Short-term temperature resistance up to 255°C for lead-free soldering
  • Chemical resistance to automotive fluids and printed circuit board cleaning chemicals
  • Low moisture absorption
  • Low-flash processing
  • High CTI and arc resistance
  • High whiteness and color stability


  • Glass and/or mineral-reinforced
  • Flame-retardant (UL94 V-0)


  • Injection molding
  • Drop-in replacement for PBT in some applications


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