The coating is typically applied electrostatically and is then cured under heat to allow it to flow and form a “skin”. The powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint.
Powder coating is a dry finishing process that has become extremely popular since its introduction in North America in the 1960s. Representing over 15% of the total industrial finishing market, powder is used on a wide array of products.