Is aluminum rim polishing difficult?
It can be. Aluminum will not shine to a mirror finish until all surface imperfections have been sanded out and the aluminum has been polished with media of successively finer grit. Achieving an ideal polish requires a thoughtful combination of surface preparation, polishing media, buff material, buff speed, pressure and heat. Polishing truck wheels by hand is a dirty, tedious process that can take 2 to 4 hours per rim.