Auto Air Colors are water-based custom automotive paint. Auto Air Colors are for complete paintjobs graphics onto existing finishes or for intermixing with urethane paintjobs. Auto Air Colors are compatible with all urethane products allowing them to work with all urethane paint systems. Auto Air Colors are the perfect compliment to other paint systems which lack custom color options. Auto Air Colors are ready to spray out of the bottle without the need for mixing a catalyst or reducer. Colors may be thinned with Auto Air Reducer to achieve a lower viscosity when spraying with an airbrush. Auto Air Colors do not have a limited pot life during use and their storage life exceeds 2 years. Auto Air Colors do not have time windows. They may be top-coated with a urethane clear at any time after theyâve cured no matter how long the time period between painting and clearing there is. Auto Air Colors are compatible with all urethane clears.