So I've got a piece of shiny metal here that has had paint sprayed on it nicely. The only problem is, because an adhesive promoter was not used, there's a bit of flaking going on. How do I remove that paint without abraising the underlying surface with sandpaper? I just want to get the paint off, do the adhesion promoter, and re-paint it. It will be fine if I can get that paint off the shiny bits easily.

Dip the parts in turpentine, maybe?

Advice?