Polyurethane - O-Ring & Engineered Seals Division | Parker US

Material Selection Guide


POLYURETHANE (AU, EU)


Polyurethane elastomers, as a class, have excellent wear resistance, high tensile strength and high elasticity in comparison with any other elastomers. Permeability is good and comparable with butyl.

Heat resistance:

  • Up to approximately 82°C (180°F)

Cold flexibility:

  • Down to approximately -40°C (-40°F)

Chemical resistance:

  • Pure aliphatic hydrocarbons (propane, butane)
  • Mineral oil and grease
  • Silicone oil and grease
  • Water up to 50°C (125°F)

Not compatible with:

  • Ketones, esters, ethers, alcohols, glycols
  • Hot water, steam, alkalis, amines, acids