DINITROL 4010 leaves a hard, transparent film that is resistant to both alkali and acids. DINITROL 4010 is heat resistant up to a temperature of more than 200°C. DINITROL 4010 has a shiny and clean film which facilitates a visual inspection of metal surfaces, reading of labels and numbers etc. The adhesion and flexibility on rubber and plastic parts at both low and high temperatures are very good. Appropriate parts to be treated with DINITROL 4010 are engine compartments, engines and other parts which have to withstand high temperatures.