COATED RESIN PART FOR AUTOMOBILE WITH PHOSPHORESCENT PROPERTIES, COATING METHOD, AND COATING MATERIAL USED THEREFOR

摘要

PROBLEM TO BE SOLVED: To obtain a coated resin part for an automobiles which is visible in a dark place and has good water resistance, adhesion of a coating film, and durability by coating the surface of a resin substrate for an automobiles with a base coating film containing a phosphorescent pigment subjected to a phosphoric acid-based treatment. SOLUTION: A base coating film is formed as an undercoating film by coating the surface of a resin substrate for an automobiles with a base coating material containing a phosphorescent pigment presubjected to a phosphoric acid-based treatment. Thus, a stable visibility in a dark place is assured, and the water resistance and adhesion between coating films are enhanced. A phosphorescent pigment mainly comprising strontium aluminate is suitable. The content of the pigment in the base coating material is preferably 10-70 wt.% of the solid content in the base coating material. A clear coating film formed on the base coating film may contain a transparent delustering agent, preferably in an amount of 40 wt.% or lower of the solid content of the clear coating film.