| abstract |
PROBLEM TO BE SOLVED: To provide a multilayer coating film which is excellent in basic properties such as weather resistance, water resistance, discoloration resistance and the like and has improved adhesion of the coating film. SOLUTION: (a) The glass transition temperature is -20 to 70 ° C. A first coating layer formed from an aqueous coating composition containing an acrylic polymer aqueous dispersion as a main component, and (b) a silicone-containing aqueous acrylic polymer dispersion as a main component, An aqueous coating composition containing 5 to 60 parts by mass of an organosilicone unit per 100 parts by mass of the solid content (in terms of solid content) in the solid content of the dispersion, formed on the first coating layer. (A) an acrylic polymer which is the main component of the aqueous coating composition forming the first coating layer, and (b) a second coating layer. The difference in the solubility parameter of each acrylic resin component of the polymer, A multilayer coating film having a thickness of 0.5 or less. |