The invention relates to a multicoat paint
system comprising,
lying above one another in this order,(1) at least one first basecoat comprising basecoat material (A),(2) preferably a second, color and / or effect basecoat comprising basecoat material (B), and(3) at least one transparent
coating comprising clearcoat material (C),wherein the basecoat material (A) which forms the first basecoat comprises at least one binder (a.1), at least one color and / or effect
pigment (a.2), and a
corrosion-inhibiting component (a.3) with a
parent structure (GK1), selected from the group of low molecular
mass alkyl,
aryl, aralkyl, and cycloalkyl radicals and / or heterocyclic radicals, which carries at least one
phosphoric acid group as ligand (L1), and / or at least one
corrosion-inhibiting component with a
parent structure (GK2), selected from the group of
alkyl,
aryl, aralkyl, and cycloalkyl radicals, heterocyclic radicals and / or polymers, which carries at least one phosphonic
acid group as ligand (L2).