I have some powdercoated silver rims that I’d like to take the coating off with walnut media blasting. Then polish the rims up to a natural finnish. Would walnut shell do the job? They are pretty much a flat wheel that I could take a DA to. Plus I want to polish up the backside as well. I know it going to be some hard work and long hours. I’d just like to give these factory rims a whole new look that has never been seen in a natural aluminum polish finish.