The coating is generally composed of film forming materials, fillers (pigments and fillers), solvents and additives. Sometimes the composition will change slightly according to the performance requirements, for example, there is no pigment or filler in the varnish, and there may be no solvent in the powder coating.

Paint is the ancient name; Paint, as a modern civilization name, contains more scientific and technological components and is widely used in modern science and technology and industrial fields. However, there are some familiar terms for paint, such as emulsion paint, primer, finish paint, etc.