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PU Polyurethane O-Rings & Seals

Polyurethane is the toughest, most extrusion-resistant, and most abrasion-resistant of all elastomeric sealing materials. Polyurethane O-rings can withstand pressures up to 5,000 psi with a 2.5 mm extrusion gap. Polyurethane is also very resistant to explosive decompression and has excellent properties over a wide temperature range.

Polyurethane O-rings are used in a wide variety of products, including quick- disconnect hydraulic fittings, hydraulic cylinders and valves, pneumatic tools, CO2 firearms, or for applications requiring extreme abrasion or extrusion resistance.

NewDealSeals supplies Polyurethane O-rings and seals in any dimension and in various compounds. Would you like to know more about our sealing solutions? Call +31(0)226362233 or mail us

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Blue purple polyurethane o-rings and PU seals

Specifications PU

  • Temperature range:
    -50 to 108 °C
  • Shore:
    30 / 40 / 50 / 60 / 70 / 80 / 90
  • Relative Cost:
    Rating symbol: High
  • Tradenames:
    Adiprene® (Chemtura), Estane® (Lubrizol), Millathane® (TSE Industries), Morthane® (Morton International, Inc.), Pellethane® (Lubrizol), Texin® (Bayer Corporation, Plastics Division), Vibrathane® (Chemtura)
  • Common names:
    Polyurethane, PU
  • Colours:
    Translucent Yellow. Other colors on request.

PU Characteristics

Resistance PU
Abrasion Rating symbol: Excellent
Acid Rating symbol: Poor
Base Rating symbol: Fair
Chemical Rating symbol: Fair to Good
Cold Rating symbol: Good
Flame Rating symbol: Poor
Heat Rating symbol: Fair
Resistance PU
Oil Rating symbol: Good
Ozon Rating symbol: Excellent
Set Rating symbol: Fair
Steam Rating symbol: Poor
Tear Rating symbol: Good to Excellent
Water Rating symbol: Poor
Weather Rating symbol: Excellent
Propertys PU
Dynamic properties Rating symbol: Excellent
Electrical properties Rating symbol: Fair to Good
Gas impermeability Rating symbol: Good
Tensile strength Rating symbol: Excellent