| abstract |
[57] [Problem] For one-component type steel material excellent in corrosion resistance, solvent resistance, alkali resistance, paint adhesion, film adhesion, bath stability, and suitable for coating steel materials such as galvanized steel sheets. An aqueous coating agent, a method for coating steel with the same, and a coated steel are provided. SOLUTION: This is an aqueous coating agent for steel, in which an aqueous dispersion resin is blended at a solid content of 5 to 30% by mass, wherein the aqueous dispersion resin is obtained by reacting an epoxy compound and / or an epoxy group-containing silane compound. A water-based coating agent for steel materials, characterized in that: |