Finish is very thin on most good quality blanks. If you can feel a scratch with your finger nail you can not polish it out and risk doing more damage than you started with. I have polished and waxed many rods, work great but only for surface scratches.If it's very light surface scratches, then yes, an automotive polish will work. Key is getting one aggressive enough to remove the scratches, but not so abrasive to cause more scratches. Probably best to start light, and see if that works.