Polyurethane Rubber Products

Polyurethane Rubber - PU

Polyurethane Rubber (PU) has good impact, abrasion, heat and chemical resistance with strong tensile strength. Polyurethane Rubber's upper temperature limit is typically 80C. They have excellent resistance to weathering and oxidation. They resist hydrocarbon fuels and mineral oils but some grades hydrolyse in hot water. They are one of the best rubbers for abrasion resistance and are therefore used in reciprocating seals. Some grades are castable.

General uses: O-rings, gaskets, abrasion-resistant bearing set, sports accessories.

Polyurethane Rubber Material Properties
Hardness Range 30-90
Temp. Range C° -40 / 90
Strength Properties Excellent
Compression Set Excellent
Abrasion Resistance Excellent
Tear Resistance Excellent
Weather Resistance Good
Ozone Resistance Good
Water Resistance Unacceptable
Mineral Oil Resistance Good
Vegetable Oil Resistance Good
Gas Barrier Properties Good
Electrical Properties Good
Flame Resistance Poor
Acid Resistance Unacceptable
Tackiness Excellent
Color Stability Poor

While the technical information and suggestions for use contained herein are believed to be accurate and reliable, nothing stated in this bulletin is to be taken as a warranty either expressed or implied. It is the user's responsibility to determine suitability and fitness of application, preferably through independent prototype testing and field evaluation programs by users. There is no warranty of merchantability or fitness for use, nor any other warranty either expressed or implied.


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Last updated 11.14.2019