| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of difficulty in obtaining finishing with beautiful appearance due to insufficient covering of stained parts even by normal coating to be applied to an exposed face which may form stains such as remarkably blackened spots caused by staining due to rain streaks on the exposed concrete surface deteriorated by the elapse of time, and to provide a coating method preferable for the cast concrete face and more preferably for the concrete face deteriorated with the elapse of time. SOLUTION: The coating comprises applying to the exposed concrete face an undercoating material which contains synthetic resin emulsion and a white pigment with a white level of≥95 and an average particle diameter of 0.1-1μm and forms a coated film with a hiding ratio of 10-50%, and applying to the exposed concrete face a top coating material which contains the synthetic resin emulsion and an extender pigment with a white level of≥50 and <95 and an average particle diameter of 0.1-50μm and forms a coated film with a hiding ratio of 10-50%. COPYRIGHT: (C)2004,JPO
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