Made a short little video (using a fellow members GenV case as the model) to show you what I use to safely and correctly remove gaskets off non ferrous metals.
YouTube - 3M Roloc
For other metals, such as steel and iron, you would use the GREEN colored bristle pad from 3M.
No need to invest in the white ones, the other two will do all the jobs nicely for almost any application you will ever need them to.
3M? Roloc? Bristle Discs
~F~