Abstract: The present invention relates to a method for applying a weldable anti-scale coat to steel, comprising producing a thin silicatic layer free from metal pigments on the metallic steel surface, and subsequently applying and curing a wet film of a curable, pigment-containing paint; wherein said paint comprises, in solution in a liquid phase, a binder, comprising hydrolysates and/or condensates of at least one silane/siloxane and/or at least one silicone resin; at least one particulate metallic pigment of AI and at least one particulate metallic pigment of Bi. The present invention also relates to application of an organic paint film system obtainable in the method of the invention, a paint formula useful in the method of the invention, a hot forming operation on steel coated in the method of the invention; and a hot-formed steel component suitable for electrical spot welding processes.

Abstract: The present invention relates to a method for applying a weldable anti-scale coat to steel, comprising producing a thin silicatic layer free from metal pigments on the metallic steel surface, and subsequently applying and curing a wet film of a curable, pigment-containing paint; wherein said paint comprises, in solution in a liquid phase, a binder, comprising hydrolysates and/or condensates of at least one silane/siloxane and/or at least one silicone resin; at least one particulate metallic pigment of Al and at least one particulate metallic pigment of Bi. The present invention also relates to application of an organic paint film system obtainable in the method of the invention, a paint formula useful in the method of the invention, a hot forming operation on steel coated in the method of the invention; and a hot-formed steel component suitable for electrical spot welding processes.

Abstract: The invention relates to a metal sheet, or a component made of a metallic material, comprising a layer system on the surface with at least the following layers: a) a conversion layer, comprising no more than 1 mg chromium per m2, b) a layer of a cross-linked organic polymer system with a thickness in the range of 0.5 to 2.5 ?m, comprising, in relation to the total mass of said layer, 2 to 25 wt. % of an electrically conductive pigment having a specific weight of 3 g/cm3 maximum, however no more than 5 wt. % of the electrically conductive pigment having a specific weight of more than 3 g/m3. A coating material and a coating method for the production of the layer b).

Abstract: A composition for coating metal surfaces based on crosslinking polyester resins as an organic constituent, which, based on its total mass, contains from 4 to 20% by weight of aluminum flakes and not more than 0.1% by weight of compounds containing isocyanate groups. The composition preferably comprises, as an organic binder, at least one hydroxylated polyester resin, preferably having a mean molar mass in the range from 2000 to 15,000, a crosslinking component for the hydroxylated polyester resin and an acidic crosslinking catalyst. A process for applying the composition to metal strip in a belt process is likewise disclosed. The layer application is adjusted within the range from 3 to 30 ?m according to the end use, for which double coating may be advantageous. For example, the composition may serve as a “galvanization replacement”.

Abstract: The invention relates to a metal sheet, or a component made of a metallic material, comprising a layer system on the surface with at least the following layers: a) a conversion layer, comprising no more than 1 mg chromium per m2, b) a layer of a cross-linked organic polymer system with a thickness in the range of 0.5 to 2.5 ?m, comprising, in relation to the total mass of said layer, 2 to 25 wt. % of an electrically conductive pigment having a specific weight of 3 g/cm3 maximum, however no more than 5 wt. % of the electrically conductive pigment having a specific weight of more than 3 g/m3. A coating material and a coating method for the production of the layer b).

Abstract: A substance for coating metal surfaces, comprising organic resin components that are dissolved or dispersed in an organic solvent, or solvent mixture, having at least the following organic resin components: a) epoxy resin, present as polyether comprising hydroxyl groups, based on a bisphenol epichlorohydrin polycondensation product, b) blocked aliphatic polyisocyanate, c) unblocked aliphatic polyisocyanate, d) at least one reaction component, selected from polyesters comprising hydroxyl groups and poly(meth)acrylates comprising hydroxyl groups. The substance may also comprise at least one conductivity pigment. The invention further provides a method for coating a sheet metal with this substance, the respectively coated sheet metal, and the use thereof.