Urethane Rubber Comparisons between rubber and polyurethanes are often made without a true understanding of the technologies involved. Both rubber and urethane offer their own advantages and disadvantages. RotaDyne – a world leader in rubber manufacturing – understands both, which is why the RotaDyne team can be your partner to help you understand the difference to make the most informed decision for the right product for your process.

Benefits of Urethane

  • Abrasion Resistance
  • Clarity and Translucence
  • Crack Resistance
  • Cut and Tear Resistance
  • Durability
  • Elongation
  • High Flex Properties
  • High or Low Frictional Values
    (can be formulated according to application needs)
  • High Durometer Range
  • Higher Load Bearing
  • Low Hysteresis
  • High Rebound Values
  • Low Compression Set
  • Microorganism Resistance (Polyether)
  • Non-Marking/Non-Staining
  • Oil Resistance
  • Ozone/Oxygen Resistance
  • Resilience
  • Tensile Strength
  • Versatility

Drawbacks of Urethane

  • Certain Chemical Environments. Urethanes do not perform well in highly alkaline or acidic environments, as well as in certain solvents, such as toluene, MEK, acetone, and ethyl acetate, and in most aromatic solvents. Most other solvents work well with urethanes
  • Most ester-based urethanes are not compatible with hot water and cannot withstand prolonged contact with live steam
  • Poor compression set recovery at continuous high temperature exposure
  • Temperature limitations, especially at the higher ends
    (typically >220 °F/110 °C)
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