Method for producing a coating consisting of surfacer and topcoat

A method for producing a coating, consisting of a cured surfacer coat and a cured topcoat, on a substrate, the method comprising:

• producing a coating system by
• first applying a first coating material to an untreated substrate or a substrate coated at least with a cured electrodeposition coat, thereby forming a surfacer coat,
• wherein the first coating material comprises a coloring pigment and at least one of the group consisting of a self-crosslinking, an externally crosslinking, and a physically drying binder, as a main binder, and
• second applying a second coating material to the surfacer coat, thereby forming a topcoat,
• wherein the second coating material comprises a coloring pigment and at least one of the group consisting of a self-crosslinking, an externally crosslinking, and a physically drying binder, as a main binder, and
• curing the coating system to form the coating,
• wherein the first and second coating materials used in the coating system are compatible according to DIN EN ISO 12944-5:2008-01,
• wherein the second applying takes place before the first coating material has reached drying stage 1 according to DIN 53150:2002-09, the drying stage being determined according to EN ISO 9117-3:2010,
• wherein the first and second coating materials in the coating system are different, and
• wherein the main binder of the first and second coating materials is at least one selected from the group consisting of an isocyanate-crosslinking, polyhydroxyl group-containing polyester and a polyacrylate resin.