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Dynacast Industrial Products Polyurethane Rubber - PU

Dynacast Industrial Products 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.

Polymer Name: Polyurethane Thermoset Elastomer (Polyester-based)

End Uses: Gaskets, O Rings, Sporting Goods

Features: Chemical Resistant, Excellent mineral Oil Resistance, Gas Barrier, Good Abrasion Resistance, Good Compression Set, Good Electrical Properties, Good Weather Stability, High Tensile Strength, Impact Resistance, Oil Resistant, Oxidation Resistant, Ozone Resistant, Tacky, Tear Resistance, Water Resistant

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Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Uses

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

Technical Details & Test Data

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