What is UHMWPE

What is Ultra High Molecular Weight Polyethylene? (UHMWPE)

UHMWPE is a subset of the thermoplastic polyethylene. It has extremely long chains resulting in a very tough material, with high impact strength. Its coefficient of friction is comparable to that of PTFE (Polytetrafluoroethylene) but it has better abrasion resistance.

UHMPE is an outstanding bearing material with exceptional sliding properties and remains tough even at low temperatures.

Processed by compression moulding or extrusion, our FL340 Rod and Sheet is annealed before machining to remove the internal stresses and as UHMWPE is easy to machine it is very a cost effective solution compared to metal.

Properties Values Units Method
Resistance to Weathering Excellent    
Tensile Strength at Break 24 MPa ASTM D638
Elongation at Break 300 % ASTM D638
Thermal Expansion 20 10-4K ASTM D696

Coefficient of Friction

P=0.05 N/mm2, v=0.6m/s

Impact Strength No Break KJ/m2 ASTM D256
Compressive Strength at 10% Deformation 3,000 psi ASTM D695
Dielectric Strength 44 KV.mm ISO 60243-1
Melting Point 130-136 oC  
Service Temperature

Short Term 120

Long Term 90

Flammability HB   UL94

The information in this table represents typical figures intended for reference and comparison purposes only 

Key features:

  • Low Moisture Absorption
  • Chemical Resistant (excluding oxidising acids)
  • High Thermal Conductivity
  • Low Dielectric Constant
  • FDA Compliant
  • Low Coefficient of Friction
  • Self-lubricating
  • Resistant to UV Radiation

Typical applications:

  • Food Processing Equipment
  • Water Treatment
  • Conveyor Lines
  • Wear Strips
  • Bearings
  • Gears
  • Pistons
  • Valves
  • Marine Equipment
  • Wet Environments That Require Regular Harsh Cleaning

To find out how we can support your projects contact info@fluorocarbon.co.uk