METHOD OF FINISHING REPAIRING COATING ON OLD PAINT FILM
PURPOSE:To form a paint film excellent in weather resistance and adhesiveness, by applying repairing paint composed of a specified fluorine-contg. copolymer and polyisocyanate onto an old paint film, and drying it at an ordinary temperature. CONSTITUTION:As paint for repairing an old paint film expo...
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Zusammenfassung: | PURPOSE:To form a paint film excellent in weather resistance and adhesiveness, by applying repairing paint composed of a specified fluorine-contg. copolymer and polyisocyanate onto an old paint film, and drying it at an ordinary temperature. CONSTITUTION:As paint for repairing an old paint film exposed to sunshine, wind and rain over a long time, a composition composed of a fluorine-contg. copolymer comprising 40-60mol% fluoroolefin, 5-45mol% cyclohexyl vinyl ether, 5-45mol% alkyl vinyl ether, 3-15mol% hydroxyalkyl vinyl ether and 0- 30mol% other copolymers, and polyisocyanate is used. The repairing paint after being applied is dried at an ordinary temperature. Consequently, a paint film excellent in corrosion and weather resistance over a long time is formed, since its oxygen permeability is small. |
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