Abstract: A method for painting water base metallic paint on an object, such as the exterior of a vehicle, comprising the steps of painting such water base metallic paint on the object with a rotary atomizer to form on such object a coating of rotary atomizer painted water base metallic paint of a predetermined thickness and, thereafter, painting over such rotary atomizer painted coating, such water base metallic paint with an air spray gun to cover such rotary atomizer painted coating, and drying such coatings. One or more of such coatings may be painted electrostatically.

Abstract: Method including painting a water-based paint onto an article to obtain a water-based paint coat, initially predrying the water-based paint coat by heating with far infrared rays, further predrying the water-based coat by heating with hot air, and thereafter painting either water-based paint or oil-based paint on top of the water-based paint coat. The article can be forcibly cooled with cold air after the further predrying step. The apparatus includes a front-stage paint booth for painting therein a water-based paint to obtain the water-based paint coat, a first predrying chamber in line with and after the front-stage paint booth and having devices for heating with far infrared rays, a second predrying chamber in line with and after the first predrying chamber and having devices for heating with hot air, and a rear-stage paint booth in line with and after the second predrying chamber for painting therein either the water-based paint or the oil-based paint.