Acrylic Enamel to the Rescue!
Emergency Thin Finish Repair • High-gloss Black and White Finishes:

For finishes that are so thin, pre-existing or sanded through, that a traditional polyester repair is difficult or impossible. This topcoat was formulated as a much simpler solution. Apply enamel with the Preval Airless Paint Sprayer, a portable professional spray system that can be used in-home or in a shop.