Polyurethane O-Rings - Cast Urethane O-Rings

Polyurethane O-Rings
Polyurethane O-Rings

General Polyurethane Description:

Polyurethane rubber is a thermoplastic elastomer formed by reacting a polyol with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives. Polyurethane rubber is widely used due to its high strength, and excellent tear and abrasion resistance. Polyurethane also provides excellent permeation resistance.

Recommended Use Not Recommended For Mechanical Properties
Drive Belts
Some Petroleum Oils
Some Hydrocarbon Fuels
Oxygen / Ozone
Ketones (MEK)
Acids
Auto / Aircraft Brake Fluids
Chlorinated Hydrocarbons
Water
Excellent Wear Resistance
Poor Compression Set Resistance
Excellent Short-Term Resilience

Popular Polyurethane Compounds:

Hundreds more specialty compounds available. Contact a Marco Sales Consultant or Engineer for more information.

Marco CPD# Color Duro (Shore A) Relative Price Typical Inventory Level High Temp (F) Low Temp (F) Steam < 300 F Steam < 400 F Compression Set Chemical & Solvents Sunliight, Ozone, UV Wear Abrasion Permeation Vacuum Petroleum Oils & Hydraulics Fuels & Gas Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor
Datasheet P1000
Translucent 70 O-ring Price Comparison 5 Med 250 -65 4 4 2 3 1 1 1 3 3 4
High performance 70 durometer Polyurethane
Datasheet P1001
Translucent 90 O-ring Price Comparison 5 Med 250 -65 4 4 2 3 1 1 1 3 3 4
High performance 90 durometer Polyurethane
Datasheet P1004
Translucent 90 O-ring Price Comparison 3 Med 180 -30 4 4 3 4 1 2 1 4 4 4
General purpose 90 durometer Polyurethane
Datasheet P1006
Translucent 70 O-ring Price Comparison 3 Med 180 -30 4 4 3 4 1 2 1 4 4 4
General purpose 70 durometer Polyurethane

Polyurethane Temperature Range:

The temperature ranges presented above are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.

Common Names:

Urethane, AU, EU, PU

Trade Names:

Adiprene®, Millathane®, Vibrathane®

Polyurethane Rubber Features:

Polyurethane Rubber Limitations:

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Marco Rubber & Plastics
PO Box 1150
Seabrook, NH 03874

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