| 摘要 |
PROBLEM TO BE SOLVED: To provide a coated steel sheet for exterior which can cover up insufficient characteristics of a fluoroplastic coated steel sheet, such as faults of being impaired or pressure-marked easily or tending to cause ice or the like to slip down, in particular, while it is capable of ensuring such characteristics as resistances to weather, corrosion, chemicals and heat that the fluoroplastic coated steel sheet has. SOLUTION: An Al-Zn alloy plated steel sheet of 5-65 wt.% being used as a base, a resin coating blended with a rustproof pigment is baked to coat the surface side of the base so that the thickness of a dry coat is 1-5μm, and thereby a prime coat layer is formed. A topcoat layer is formed on the prime coat layer. As for the resin coating for the topcoat layer, an acrylic resin coating of 18-120 pts.wt. is blended in a fluoroplastic coating of 100 pts.wt. and further ceramic fibers of 0.5-30 pts.wt. to 100 pts.wt. of the blended resin coating is blended with this resin coating. The resin coating of the topcoat layer is baked for coating so that the thickness of the dry coat is 7-19μm.
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