Before buffing, apply a cutting compound to the buffing tool. The cutting compound protects the metal and gives it a nice shine. Read the instructions on the package to determine which compound to use for your project. In general, you can start with a firm wheel and a brown compound to do your initial polishing, then choose a softer wheel and a rouge (red) compound to get a high shine and smooth finish.

Summary:
Apply a cutting compound to your buffing tool.