Powder coating is a type of coating that is applied as a free-flowing, dry powder. The main difference between powder coating and traditional wet paint is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The powder coating is typically applied electrostatically and is then cured under heat to allow it to flow and form a "skin." Powder coating is usually used to create a hard finish that is tougher than conventional paint.