most of the time I just do a really good job with wet 220grit made for metals, but if for some reason you wanted to go crazy with it try to find some
1500grit wet sanding paper. You can find it at this price at most local auto part stores, and some hardware shops. They use it to finish paint for cars, Ive used it once when I got the left overs from a friend.
I did 220 dry, 400 wet, 600 wet, then finnaly 1500 wet...never thought I would ever see anything with such a shine
