AutoAir Colors METALLIC airbrush color 4348 ROSE 120 ml Pearlescent and Metallic Colors are pearl base coats. For graphics and base coat application, they’re best applied as a mid-coat over a color-keyed AutoBorne Sealer base. Using minimal amounts of pearlescent is key to achieving an even pearlescent finish. Pearlescent Colors and Metallic Colors cover well and are best applied with a large tip-sized airbrush or spray-gun. The colors Createx, Wicked, Auto Air and Illustration can be diluted with the High Performance Reducer.