Vehicles such as cars, Lorries, buses, and autorikshaws are mainly steel structures. The body chassis, floor board, inside window panels, and boot, when not properly given a coating of anticorrosive paint, are constantly exposed to the corrosive action of the atmosphere and water. Maximum disintegration of steel parts occurs during the rainy season which is most dreaded by every vehicle owner. Humidity and presence of salt, in the atmosphere are active corroding agents.