My answer pertains to the use of lacquer based paints. I paint my colors, quickly clean my airbrush and prepare for the next color, then I pull off the mask for the next color. anywhere from 5-10 minutes is all I wait. Neon colors are a different story, they like to pull up with my mask if I don't wait long enough. so I trace my cut lines lightly with an exacto knife to prevent this instead of waiting a couple hours for it to dry!