| abstract |
[Problem] To provide a coating method for a galvanized steel structure capable of forming a multilayer coating film having excellent adhesion and corrosion resistance even when the thickness of the multilayer coating film is 200 μm or less. To do. SOLUTION: On a surface of a galvanized steel structure, (A) an epoxy resin having two or more epoxy groups in one molecule, (B) a modified resin, (C) an amine curing agent, (D) phosphorus Undercoat paint (I) containing acid-based rust preventive pigment and (E) extender pigment is applied to a cured film thickness of 80 to 150 μm, then fluororesin paint, acrylic silicon resin paint and polyurethane resin paint A method of coating a galvanized steel structure, wherein at least one type of top coat (II) selected from (1) is applied so as to have a cured film thickness of 15 to 60 μm. [Selection figure] None |