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UHMW-PE (Ultra-high molecular weight polyethylene, Tivar®)

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UHMW, also known as ultra high molecular weight polyethylene (UHMW-PE) is a high performance polyethylene with a much higher molecular weight than standard polyethylene. This substantially higher molecular weight accounts for the increased wear resistance, chemical inertness and low coefficient of friction. Typical applications includes wear strips, wear profiles and any other applications that require abrasion resistance.

Advantages:

  • Excellent dielectric properties.
  • Moisture resistant.
  • Very good chemical resistance.
  • Available in food grades.

Disadvantages:

  • High thermal expansion.
  • Poor weatherability.
  • Difficult to bond (can be welded).
  • Flammable.

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