I have a NOS Reynolds 525 frame and fork that has just a small place that needs to be touched up on the metal split shot that is on the bottom of the right chainstay for the rear derailleur cable to go through..
I tried just painting it...paint won't stay on the shiny metal. I tried sanding the paint in the area and then touching it up...paint won't stay on the shiny metal. I have tried sanding and then priming it with a couple of layers of different primers including etching primer...neither primer nor paint will stay on the shiny metal.
Any ideas how to make the shiny metal hold this primer and paint?