Polyurethane
- Polyurethane Rubber (AU, EU)
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Typical
Trade Names:
-
Adiprene - E.I. du Pont de Nemours Company
-
Cyanaprene - American Cyanamid Co.
- Disogrin
- Disogrin Co.
- Elastothane
- Thiokol Chemical Corp.
- Formrez
- Silco Chemical Co.
- Pellethane
- Upjohn Co.
- Vibrathane
- Uniroyal
Polyurethanes
exhibit outstanding mechanical and physical properties in comparison
with other elastomers. Over a temperature range of -65 degrees
to 200 degrees F, resistance to petroleum oils, hydrocarbon fuels,
oxygen, ozone and weathering is good. However, polyurethanes quickly
deteriorate when exposed to acids, ketones and chlorinated hydrocarbons.
Certain types of polyurethane are also sensitive to water and
humidity.
The
inherent toughness and abrasion resistance of polyurethane seals
is particularly desirable in hydraulic systems where high pressures,
shock loads, wide metal tolerances, or abrasive contamination
is anticipated.
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