Can Paintless Dent Repair Work on Repainted Classic Cars? Yes, it can. But only when the vehicle, paint, and approach are right. This classic Mustang came to our Escondido shop with a dent and an after market paint finish. There was no back side access, so the repair required a careful discovery process before any work was approved. On repainted classic vehicles, paint strength and adhesion can vary. Before glue pulling, we tested the paint and used clear packing tape to help protect the surface