It is applied to all metal surfaces to provide corrosion resistance and a decorative appearance. It is applied by spraying solvent-based epoxy, acrylic, polyurethane, infrared reflective paints, and water-based paints. Wet coating application is made with a suitable primer application process. For the performance of Wet Coating to be satisfactory, proper surface preparation is essential. In cases where high corrosion resistance is desired, a suitable chemical pre-treatment is selected according to the structure of the metal. (Aluminum chromatizing or anodizing is recommended if the part is aluminum, phosphating if it is steel, and passivation if it is stainless). If it is a purely decorative application, mechanical treatment is suitable. (Sandblasting, sanding, vibration etc.)