Recoating and Rebuilding DW Racks
Is probably not a cost effective thing to do. First you have to get all the old coating off, my guess that the best way to do this is by burning it off, then you would have to bead blast or rock tumble the metal clean of ash, rust and other residue. Also most people don't get around to worrying about replacing DW racks till there are badly rusted and sections are missing, which would require time consuming repairs and welding.
Travis, you may be able to re-coat your racks with several coats of marine epoxy paint.