| abstract |
(57) [Abstract] [Purpose] To provide a black metal plate that has an excellent black appearance within a weldable film thickness range and that has excellent weather resistance equivalent to that of a black coated steel plate. A plate or a plated metal plate has a surface with a predetermined amount of a chromate coating, if necessary, and a total amount of black dye and carbon black of 10 to 200 per 100 parts by weight of a thermosetting resin. By weight, the blending ratio (weight ratio) of the black dye and carbon black is 100 / 1 to 1/1 and, if necessary, a specific lubricant or / and a specific rust-preventive additive in a specific ratio in a black film made of a composition having a thickness of 0.3 to 5.0 μm. It is a black metal plate having, and by adding a black dye and carbon black as a black imparting agent together in a specific ratio, an excellent black appearance and weather resistance can be obtained in a weldable thin film thickness. |