| abstract |
Disclosed is a powder coating composition and a method for forming a coating film, which are excellent in finish, water resistance, corrosion resistance, and coating film hardness. A carboxyl group-containing polyester resin (a), a β-hydroxyalkylamide compound (b), and a solid silane coupling agent (c) in which a silane coupling agent (c1) is incorporated in the resin (c2) are contained. The solid silane coupling agent (c) is added to 100 parts by mass of the solid content of the carboxyl group-containing polyester resin (a) and the β-hydroxyalkylamide compound (b). A powder coating composition containing 0.1 to 20 parts by mass. [Selection figure] None |