Automobile matte color coating repair method

The invention discloses an automobile matte color coating repair method. The automobile matte color coating repair method comprises the following steps: carrying out pretreatment on a paint surface defect part; then, colored paint spraying is carried out on the area subjected to pretreatment; then, the sprayed colored paint is rapidly dried at the high temperature of 600-650 DEG C; after the colored paint is cooled to 200-250 DEG C, at least one layer of bright repairing varnish is atomized on the surface of the colored paint, and the particle size of the varnish is 0.3-0.5 micron; and finally, the sprayed varnish is dried. According to the method, the glossiness difference between the repaired part and the unrepaired part can be eliminated, the defect repair of the matte color inner plate paint surface is realized in a varnish atomization manner, the coating qualification rate is improved, the matte color coating defect can be repaired without re-coating, the beat loss can be reduced, and the cost of a singl