Check out the craft paint at our local Micheals store. It is acrylic, heavy pigmented and drys flat. It can be shot through an airbrush if thinned with water and a little airbrush medium to smooth it out. No odor nor overspray. It comes in more colors that you could every use. The best part it is about $1 per bottle. Bottles are plastic squeeze type with flip lids. Use it right from the bottle with a brush, minimal brush strokes. Some popular colors that are off the shelf are tans for flight suits, blues for Navy airfraft, greens for chromate, just about any color or shade you need. They mix well with each other. Great white for tinting. Try them, can't miss.