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Polyurethane

Major Advantages

  • Mechanical Strength: Exhibits high tensile strength and excellent elongation, even at high durometer readings.
  • Durability: Offers superior resistance to abrasion and tearing.
  • Environmental Resistance: Provides good protection against ozone and oxygen.
  • Chemical Stability: Shows reliable resistance to aliphatic solvents and cold water.
  • Low Friction: Features a low coefficient of friction, making it versatile for moving parts.
  • Versatility in Form: Can be produced as either sponge or solid rubber.
  • Wide Hardness Range: Available in a broad range of solid durometers, from 10 Shore A to 75 Shore D.

Common Applications

  • Cast & Ground Parts: Frequently manufactured into washers and sleeves.
  • Industrial Components: Widely used as a material for roller covers.

Limitations

  • Chemical Vulnerability: Not recommended for use in environments involving acids or alkalis.
  • Thermal Constraints: Not suitable for high-heat applications; performance degrades at temperatures above 140°F.