Abstract: A process for the production of multi-layer coatings comprising the successive steps: 1) applying an 8 to 20 ?m thick coating layer from an aqueous coating composition A onto a substrate provided with an EDC primer, 2) applying a 5 to 15 ?m thick base coat layer from an aqueous coating composition B onto the previously applied coating layer, 3) applying a clear coat layer onto the base coat layer, 4) jointly curing the three coating layers, wherein coating compositions A and B being different from each other and wherein the coating composition A contains at least one metal platelet pigment having a thickness from 10 to 100 nm in a proportion corresponding to a pigment/resin solids ratio by weight from 0.06:1 to 0.2:1.

Abstract: The present invention is a process for producing multilayer coatings. The present invention is a process for the production of coatings having a low total coating thickness in the desired color shade without separate baking of the primer surfacer layer.

Abstract: A process for the production of multi-layer coatings comprising the successive steps: 1) applying an 8 to 20 ?m thick coating layer from an aqueous coating composition A onto a substrate provided with an EDC primer, 2) applying a 5 to 15 ?m thick base coat layer from an aqueous coating composition B onto the previously applied coating layer, 3) applying a clear coat layer onto the base coat layer, 4) jointly curing the three coating layers, wherein coating compositions A and B being different from each other and wherein the coating composition A contains at least one metal platelet pigment having a thickness from 10 to 100 nm in a proportion corresponding to a pigment/resin solids ratio by weight from 0.06:1 to 0.2:1.

Abstract: A process for the production of multi-layer coatings comprising the successive steps: 1) applying an 8 to 20 ?m thick coating layer from an aqueous coating composition A onto a substrate provided with an EDC primer, 2) applying a 5 to 15 ?m thick base coat layer from an aqueous coating composition B onto the previously applied coating layer, 3) applying a clear coat layer onto the base coat layer, 4) jointly curing the three coating layers, wherein coating compositions A and B being different from each other and wherein the coating composition A contains at least one metal platelet pigment having a thickness from 10 to 100 nm in a proportion corresponding to a pigment/resin solids ratio by weight from 0.06:1 to 0.2:1.

Abstract: A process for the production of multi-layer coatings comprising the successive steps: 1) application of a 8 to 20 ?m thick coating layer from an aqueous coating composition A onto a substrate provided with an EDC primer, 2) application of a base coat layer from an aqueous coating composition B in a film thickness, below its black/white opacity, of 5 to 10 ?m onto the previously applied coating layer, 3) application of a clear coat layer onto the base coat layer, 4) joint curing of the three coating layers, wherein coating compositions A and B being different from each other, the coating composition A having a ratio by weight of pigment content to resin solids of 0.2 to 0.5:1, the pigment content consisting of 0 to 100 wt. % of at least one aluminium platelet pigment having a platelet thickness from 200 to 500 nm, 0 to 90 wt.

Abstract: Process for the production of multi-layer coatings, comprising the successive steps: 1) applying a 10 to 35 ?m thick base coat layer to a substrate provided with an EDC primer, 2) applying a clear coat layer onto the base coat layer, 3) jointly curing the base coat and clear coat layers, wherein the base coat layer is applied in a first layer and in a second layer; the first layer comprises a modified water-borne base coat produced by mixing an unmodified water-borne base coat with a pigmented admixture component and the second layer comprises the unmodified water-borne base coat, wherein the admixture component contains one or more binders A, has a ratio by weight of pigment content to resin solids content of 0.05:1 to 1:1 and is mixed into the unmodified water-borne base coat in a ratio by weight of 0.

Abstract: A process for the production of multi-layer coatings, comprising the successive steps: 1) applying a 10 to 35 ?m thick base coat layer onto a substrate provided with an EDC primer, 2) applying a clear coat layer onto the base coat layer, 3) jointly curing the base coat and clear coat layers, wherein the base coat layer is applied in a first layer and in a second layer; the first layer comprises a modified water-borne base coat produced by mixing an unmodified water-borne base coat with a pigmented admixture component and the second layer comprises the unmodified water-borne base coat, wherein the admixture component contains at least one polyisocyanate, has a ratio by weight of pigment content to resin solids content of 0.05:1 to 0.5:1 and is mixed into the unmodified water-borne base coat in a ratio by weight of 0.