Powder coating is a dry finishing process used to apply a durable, protective, and decorative coating to metal (mild steel, galvanised, aluminium). A fine powder (made of resin, pigments and additives) is sprayed onto the surface using an electrostatic gun. The powder particles become electrically charged and stick to the grounded object. The powder is then cured in an oven where the powder melts, flows and hardens into a smooth, durable finish.