| abstract |
(57) [Summary] [Structure] A metal building material characterized by applying a cationic electrodeposition paint containing a specific acrylic resin, a blocked isocyanate compound, and a solvent having a boiling point of 150 to 250 ° C as a main component in a fixed ratio. Surface coating method. [Effect] By the method for coating a non-ferrous metal surface of the present invention, a good coating film having excellent weather resistance, acid resistance and adhesion to a substrate is formed on the surface of a building material of aluminum, anodized aluminum, stainless steel and other metals. Can be formed. |