| abstract |
(57) [Summary] [PROBLEMS] To improve the drying property of a coating film, Excellent adhesion, cutting workability, etc. SOLUTION: The surface of the casting for cutting which has been coated with a rust-preventive oil is subjected to alkali degreasing treatment with an alkali degreasing treatment liquid, and after drying, a number average molecular weight of 2800 to 20,000 and a melting point of 70 to 170 ° C. A non-crosslinked organic solvent-based paint containing an amino-modified epoxy resin (A) obtained by reacting an epoxy resin with an amino alcohol and an acidic phosphoric acid-based compound (B) is applied, and after natural drying, cutting is performed. Manufacturing method of cast painted parts. |