| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating method of galvanized steel structure free from generating lifting or the like when overcoating an existing coating film without deteriorating the adhesive property and corrosion resistance to the galvanized steel structure. SOLUTION: A one pack type epoxy resin coating material composition contains an epoxy resin A having one or more epoxy groups in a molecule and soluble in an organic solvent E, a ketimine compound B having >=2 primary amino groups blocked by a carbonyl compound and having no amino group except the blocked amino group, a flaked pigment C, a dehydrating agent D and the organic solvent E which contains >=95 wt.% hydrocarbon based solvent selected from aliphatic hydrocarbon based solvents and high boiling point aromatic hydrocarbon based solvents having >=148 deg.C boiling point.
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