Before we get on with the step-by-step photos, a few words about painting are in order. The first and most important rule when using aerosol spray paints is to shake, shake, and shake! The better you mix the paint, the better it will cover. The second rule is to put on several light coats, rather than a heavy, wet coat. A heavy coat takes longer to dry, increases the chances for a run, and won't give you a uniform finish.