Buffing compounds

Colour coding for the type of grit, micron size, and carrying medium.
This may be of interest
Lionel

Red Rouge is recommended for producing the highest polish and the best color on gold, silver, brass, and copper Green Rouge is recommended for final polish on hard metals such as platinum, white gold, chrome, nickel, and stainless steel Zam is a compound for high polish on silver gold and chrome. Also polishes stones, epoxies and other soft metal materials. Fabulustre is a special formula that removes light scratches and produces a fast bright mirror finish White Rouge produces a chrome finish Black Rouge produces a rich dark luster
Lionel

I've used a soap called Hyfin with great results on anything from hardened steels through to silver ( in combination with the most appropriate mop ). I thoroughly recommend it.
Regards,