Top coat for outer panel of automotive vehicle, coating process therefor, and coat film formed thereby

摘要

A top coat for an outer panel of an automotive vehicle includes a clear paint formed on a base coat paint. The clear paint is constituted of acrylic resin (A) having at least one ester group containing a silicone group and at least two epoxy groups in a molecule, acrylic resin (B) having at least two epoxy groups in a molecule, and acid cross-linking agent (C) having at least two chemically blocked carboxyl groups in a molecule. The base coat paint is constituted of acrylic resin (D) having at least two hydroxyl groups in a molecule, acrylic resin (E) having at least two hydroxyl groups and at least two epoxy groups in a molecule, and melamine resin (F) having a functional group capable of reacting with a hydroxyl group.