jtilley
Wouldn't it be nice if some hobby paint company sold a substance that we could mix in with flat colors to make them glossy - without changing the hue?
I began modeling in the balsa wood days, before plastic. Model paints and dopes were not available then in flat colors. If you wanted flat finish, you mixed talcum powder in with the paint. Tried that a few years ago, mixing some talcum with a gloss enamel, and it still works.
BTW, talcum has another use- weathering vinyl tires (hard to paint with most types of paint). Dust some talcum over the tire to make it look dusty.