Yes. And you can also make any auto paint single stage or a clearcoat a flat finish by addding a flattening agent to it (basically talc like whats in baby powder if you want it to smell like a babys bottom). Any paint jobber should be able to sell you flattening agent. Test panels should be sprayed and the amount of flattener used should be recorded and then looked at when dry, to see how much flattener should be added to get the level of gloss your looking for. Normally you want to use a slower reducer when shooting autopaint for best flowout and time for solvents to escape, but when shooting a flat you generally don't want to go too slow. The slower set up time will result in a glossier finish and more flattener required to get the same effect. Shooting a flat finish is probably just as or more difficult then a glossy finish, because must be applyed consistantly to not have areas shiner then others, and what you spray is pretty much what you got, cause if you cut and buff it will make it glossier,
