The invention relates to a coating substance combination consisting of a coating substance for forming a primer coat and a coating substance for forming a top coat and to the use of said combination for producing a coating system, consisting of a primer and a top coat, on a substrate. The substrate is preferably the body or cabin of a motor vehicle, or a component of said body or cabin. The claimed coating substance combination is particularly suitable for producing coatings, consisting of a cured primer coat and a cured top coat, on passenger vehicles and utility vehicles such as lorries, vans or buses.