| abstract |
An aqueous solution that can improve work efficiency, reduce energy, and provide a multilayer coating film excellent in appearance and water resistance when a multilayer coating film is formed by wet-on-wet using a water-based coating. A coating composition is provided. SOLUTION: 100 parts by mass of resin solid content in a coating composition, (a) 0.5 to 10% by mass of polyfunctional vinyl monomer (amount based on all monomer components), carboxyl group-containing vinyl monomer, hydroxyl group-containing vinyl monomer And 40-60 parts by mass of an emulsion resin obtained by emulsion polymerization of a monomer mixture containing other vinyl polymerizable monomers, (b) 1-5 parts by mass of an amide group-containing water-soluble acrylic resin, (c) urethane emulsion 5 A water-based coating composition containing -20 parts by mass and (d) 15-35 parts by mass of a curing agent. [Selection figure] None |