All parts are aluminum and to keep them from oxidizing you need to clean them with some eagle one aluminum polish once a week to keep the shine. This is basically what I used when I use to polish at my frineds shop. I use a air powered die grinder with 120,320 grit sanding rolls and tapered rolls. A da sander with 120,320 grit glue on back sanding disks. I used a bench grinder 3/4 horse I think. Then a 6" sisal polsihing wheel with black grease, then onto a 6" cloth sewn wheel with tripoli grease, and finaly finishing it off with a 6" loose buff. Hopefully soon I will have my own polishing shop up and running.
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