Primer Coating Composition for Coating Laser Pattern, Coated Automotive Article Including the Same, and Method of Coating Automotive Part Using the Same

A coated automotive article comprising:

• a printing layer on a base layer, the printing layer comprising a laser pattern;
• a primer layer on the printing layer, the primer layer comprising a primer coating composition comprising 20 to 25 wt % of a chlorinated polyolefin (CPO) resin having a weight-average molecular weight (Mw) of 50,000 to 100,000 g/mol, 2 to 4 wt % of a modified polyester, and 75 to 85 wt % of a hydrocarbon-based solvent;
• and
• a clear layer on the primer layer.

A method of coating an automotive part, the comprising:

• sequentially coating a base layer with a binder layer and a coating layer;
• primarily heat-treating the coated base layer;
• forming a printing layer comprising a laser pattern on the base layer;
• secondarily heat-treating the printing layer;
• sequentially coating the printing layer with a primer layer comprising a primer coating composition and a clear layer, wherein the primer coating composition comprises 20 to 25 wt % of a chlorinated polyolefin (CPO) resin having a weight-average molecular weight (Mw) of 50,000 to 100,000 g/mol, 2 to 4 wt % of a modified polyester, and 75 to 85 wt % of a hydrocarbon-based solvent;
• and
• tertiarily heat-treating the coated printing layer.