A coating system is provided having at least one first basecoat applicator for applying a first basecoat layer over at least a portion of a surface of a substrate, at least one second basecoat applicator for applying a second basecoat layer over the first basecoat layer, and a first drying chamber located between the first and second basecoat applicators, the first drying chamber providing a temperature of about 50null F. to about 90null F. (10-32.5null C.), a relative humidity of about 40% to about 80% and an air velocity of about 20 FPM to about 150 FPM (0.10-0.76 m/s) at the surface of the first basecoat layer. A method of coating a substrate is provided in which a first liquid basecoat material is applied over the substrate. The first basecoat material is exposed to air having a temperature of about 50null F. to about 90null F. (10-32.5null C.), a relative humidity of about 40% to about 80% and an air velocity of about 20 FPM to about 150 FPM (0.10-0.76 m/s) at the surface of the first basecoat material for a period of about 10 to about 180 seconds. A second liquid basecoat material is then applied over the first basecoat material.