Firstly, the paints have to be mixed thoroughly before use. Then, they can be applied with the help of a brush, roller or a sprayer, depending on the nature of the metal surface.
It is very important to note that Anti-corrosive paints are not ready-to-use. Solvents have to be added to it, such as benzene or white spirit before application, along with a good quality thinner. If the thinner is of sub-par quality, then there are chances of appearance of various defects on finished paint walls.