| abstract |
This precoated metal plate comprises a metal plate, a base coat layer formed on the metal plate and containing no chromate, a primer coat layer formed on the base coat layer and containing no chromate, Wherein the coating film layer including the primer coating layer and the top coating layer has a breaking elongation at break of 10% or more and 25% or less, and the glass transition temperature of the primer coating layer is 50 占 폚 Wherein the top coat layer comprises a resin component and the resin component comprises an acrylic resin or a polyester-modified acrylic resin, wherein when the precoated metal sheet is subjected to 2T tight bending, A total of 5 cracks having a width of 0.1 mm or less were formed in the top coat layer in a range of 1 mm in the direction perpendicular to the bending direction Occur 30 or fewer. |