| abstract |
The invention is directed to an aqueous coating composition, comprising A) at least one water-dilutable binder with functional groups containing active hydrogen, B) at least one polyisocyanate cross-linking agent with free isocyanate groups, C) at least one amino functional, having at least one group selected from a group consisting of primary amino group, secondary amino group and mixtures thereof, and having at least one group selected from a group consisting of sulfonic acid group, phosphonic acid group and mixtures thereof, and D) water and optionally, E) usual coating additives, pigments and organic solvents. |