COATING METHOD FOR AUTOMOBILE HAVING CHIPPING RESISTANT COATING FILM

摘要

PURPOSE: To increase the edge radius of an interlayer chipping resistant coating film and to improve the appearance of a finish coating by using a vinyl chloride plastisol coating material contg. a specific ratio of untreated calcium carbonate having a specific average grain size as a filler for a vinyl chloride resin in a predrying stage. ;CONSTITUTION: The vinyl chloride plastisol coating material contg. the untreated calcium carbonate having 7 to 15μM average grain diameters as the filler at 80 to 140 pts.wt. per 100 pts.wt. vinyl chloride resin is used in the predrying stage. This vinyl chloride plastisol is provided of the vinyl chloride resin, plasticizer and packing material. The vinyl chloride resin is not particularly limited, insofar as the resin is used for ordinary plastisols. For example, a vinyl chloride alone or its copolymer is usable. Above all, a copolymer with vinyl acetate has an effect of accelerating the gelatination of the resin and is, therefore, preferably added to the coating material.;COPYRIGHT: (C)1993,JPO&Japio