Described herein is an aqueous cathodically depositable electrodeposition coating material composition including at least one cathodically depositable polymer (a) and at least one carbon black pigment (b), where the at least one carbon black pigment (b) is a lamp black pigment having a number-based median primary particle size (d.sub.N,50%) of at least 50 nm and at most 200 nm. Also described herein is a method for at least partially coating an electrically conductive substrate by cathodic electrodeposition coating including immersing the substrate at least partially into an electrodeposition coating bath, which includes the electrodeposition coating material composition. Also described herein is an electrically conductive substrate, which is at least partially coated with a baked electrodeposition coating material composition and/or which is obtainable by the method. Further, described herein is a method of using the carbon black pigment (b) for improving corrosion protection and/or homogeneity of the film build.

Described herein is an aqueous coating composition (A) for at least partly coating an electrically conductive substrate with an electrocoat material, including (A1) at least one cathodically depositable resin binder, (A2) at least one crosslinking agent, (A3) at least 100 ppm of bismuth, based on the total weight of the coating composition (A), and (A4) lithium, in a form dissolved in (A), the lithium not exceeding a fraction of 300 ppm, based on the total weight of the coating composition (A). Also described herein are a method for producing (A), a coating method, and an at least partly coated substrate obtainable by the method.

The present invention relates to a material having various functions such as antimicrobial function or waterproof function, as well as a method and an apparatus for manufacturing the same. The method for manufacturing a functional material according to the present invention includes coating a surface of conductive or non-conductive material with an electrically charged microfine material having a size of nano- or micro-units, thereby imparting functionality to the material simultaneously with maintaining intrinsic properties thereof. In addition, the method for manufacturing a functional material, according to the present invention, had advantages in which: repeating a process of coating the surface of the conductive or non-conductive material with a functional substance can impart a plurality of desired functions to the material, in addition, a thickness of the functional material may be easily adjusted, and a large area/large quantity may be produced by a simplified process using a general material in a short period.