Polymethylpentene


Details

Material hierarchy: Polymer - Thermoplastic - Polyolefin

Polymethylpentene is also known as PMP. Based on 4-methylpentene-1, it is a crystalline polyolefin.


ProsCons
  • transparency (90% light transmission)
  • low specific gravity (0.83)
  • high melting point (464°F)


Common Applications

PMP has found application in making injection-molded and blow-molded laboratory ware and medical products, food processing equipment, and microwavable packaging. Glass fiber-reinforced grades, with heat distortion temperatures up to 440°F, can compete with more expensive engineering resins for electrical/electronic and automotive applications.