Stellafane ATM: Grits, Polish Pitch
Mirror makers who use grinding machines tend to use fewer grits with bigger jumps in sizes; Starting Grit Size. Mirror Size ... Cerium Oxide (CeO 2) is the ... preventing or slowing polishing. So keeping your polishing mix thin works best. An 8:1 ratio of water to powder (by volume) will yield a good thin mix about the consistency of skim milk.