AU EU Polyurethane ASTM D 2000, SAE J200 Type / Class: BG (Millable)
One must differentiate between polyester urethane (AU) and polyether urethane (EU). AU type urethanes exhibit better resistance to hydraulic fluids. Polyurethane elastomers, as a class, have excellent wear resistance, high tensile strength and high elasticity in comparison with any other elastomers. Permeability is good and comparable with butyl rubber.
|Heat Resistance||Up to approximately 180°F (82°C).|
|Cold Flexibility||Down to approximately –40°F (–40°C).|
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