Which type of topcoat is not included among the various types of topcoats?

Matte finishes are not typically classified as a type of topcoat in the same way that the other options are. When discussing topcoats in automotive painting and refinishing, clear coats, single stage colors, and tinted clears each serve specific functions. Clear coats are designed to provide protection and enhance the gloss of the color beneath them, single stage colors combine paint and clear for a straightforward application, and tinted clears add a hint of color while maintaining the protective qualities of a clear coat. Matte finishes, on the other hand, are characterized by their lack of sheen and do not fall into the conventional categories of topcoats that provide a glossy or protective layer over the base coat. Instead, matte finishes are often treated as a distinct application style, primarily used for aesthetic purposes rather than delivering the functional benefits typical of standard topcoats.