COATING COMPOSITION AND METHOD FOR FORMING COATING FILM USING SAME

摘要

The present invention addresses the problem of providing a cationic electrodeposition coating having excellent covering power (clearance application properties), edge anticorrosion properties, and finish properties. The present invention provides a cationic electrodeposition coating composition comprising: a specific amino-group-containing epoxy resin (A); blocked polyisocyanate (B) obtained by reacting an active hydrogen-containing component containing propylene glycol, and a polyisocyanate compound; and 0.1-20 mass parts of a cationic electrodepositing gelled microparticulate polymer (C) obtained by crosslinking an acrylic copolymer containing hydrolyzable alkoxysilane groups and cationic groups, per a total of 100 mass parts of the solids fraction of the amino-group-containing epoxy resin (A) and the blocked polyisocyanate compound (B).