KEPEX (the product name of PBT) is one of the thermoplastic engineering plastics produced by Korea Engineering Plastics Co. Ltd.

KEPEX molecular structure and polymerization

PBT is polymerized via the polycondensation of 1,4-butandiol with either terephthalic acid or dimethyl terephthalic acid.

KEPEX PBT resin characteristics

  1. 1Good mechanical properties
  2. 2Fast cycle injection molding properties based on high crystallization rate
  3. 3Low moisture absorption rate and good dimensional stability
  4. 4Good friction and wear properties
  5. 5Good chemical resistance
  6. 6Good electrical properties and minimal change with temperature and humidity
  7. 7Good anti-creep and anti-fatigue properties
  8. 8Good thermal property and offers long term heat resistance up to 120~130℃
  9. 9Flame retardant grades are UL94 V-0 rate.
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