Bumper Bars on most cars today are generally made from plastic materials. The best practice when repairing your bumper bar is to apply adhesion promoter to the bare plastic before applying any touch-up paints, whether it be metallic or non metallic and for all other types of paint, the same, apply adhesion promoter which is a Plastic Primer. See More Bumper bar kits or Bumper Bar Pen Kits
Metallic Paint Repair Paint Kit
See More Bumper Bar Scratch Repair Kits Repair Kits