Powder coating is a type of coating that is applied as a free-flowing, dry powder. The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The coating is typically applied electrostatically and is then cured u... Found on http://en.wikipedia.org/wiki/Powder_coating
(from the article `surface coating`) Another mode of film formation closely related to water-based coalescence is the melting and fusing of solid paint particles such as occurs in what ... Found on http://www.britannica.com/eb/a-z/p/103