Yes, they can be repainted. I scuffed them with a scotchbrite pad and then degreased them with laquer thinner. then I hit them with a good quality metal etch primer . Along the edges where i welded them I used a high zinc weld through primer. After welding, the seams were sealed with seam sealer. A final non sandable primer and then body colour. That black paint that is put on those panels is nothing short of a shipping primer used just to protect it. Other bare metal pans are covered with oil. Hope this helps.