| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating composition which reduces energy consumption during transport, can reduce loads of a coating operator, does not damage a base concealing property, has a small difference between the base concealing properties of a non-dried coating film immediately after coating and a dried film, and further has excellent wet abrasion resistance, and to provide a coating film forming method.SOLUTION: Provided is a coating composition comprising hydrous aluminum silicate, titanium dioxide, and a binder resin, wherein a mass ratio of hydrous aluminum silicate and titanium dioxide is 7 to 66%, a total pigment mass concentration of hydrous aluminum silicate and titanium dioxide is 25 to 40 mass%, and a median diameter calculated from a particle diameter distribution of hydrous aluminum silicate is 0.5 to 7 μm, the particle diameter distribution being measured by a laser diffraction scattering method with a sample liquid prepared by ultrasonic dispersion of hydrous aluminum silicate in a 0.2 mass% aqueous phosphate solution so that a concentration thereof becomes 1 mass%. Also provided is a coating film forming method wherein the coating composition is coated on a substrate to form a coating film. |
