... not used in ketone and lipid polarsolventsHNBRKeep the feature of NBR, Heat Resistance, Oil Resistance and Weather Resistance are better ... than NBRACMKeep the same Oil Resistance than NBR, Heat Resistance is a little bad than VMQ, but ... Resistance is better, Alkali and water Resistance is badder than NBR and other RubberVMQCombining well heat Resistance, cold and weather ...