NBR has high hardness and for rubber elastomers rather high resistance to attrition (110 mm3). Temperature limit of application: from -30 °C to +100 °C (about +120 °C are short-term). At high temperatures aging accelerates at the expense of what material becomes firm and fragile. It begins in the oxygen atmosphere (air) approximately at 80 °C, when blocking access of air process of aging is considerably slowed down (for example, in hot oil). This elastomer possesses low ozone resistance, to weather influence and aging (it is careful at storage). Swelling in mineral oils is very insignificant, however is in strong dependence on composition of oil.