Paint Defect Reference Library Below you will find examples of common paint defects.  They come from several different types of paint processes: Automotive assembly plant paint shops Plastic parts molding and painting facilities Metal parts casting and painting facilities Click on each thumbnail below for a larger image. Weld ball in e-coat Copper shaving in e-coat Metal shaving in powder prime Prime oven condensate in powder prime Multicolored paint chip in basecoat Masking tape residue in basecoat Blue cotton fiber in basecoat Rust in basecoat Overspray particle in clearcoat Rust in clearcoat Blue synthetic fiber in clearcoat Clear synthetic fiber in clearcoat