Just a word of caution, unless your paint is peely or very oxidized then just use a polishing mop head with machine polish.
Its very easy to mop through your paint if using G3 especially if it is original celly paint then it will already be quite thin and will be very easy to flat through. As Tom84 says use loads of water to keep it cool, and move anything you do not want plastered in G3 at least 15 ft away.
James, easiest way to remove peel is a 1500 D/A disc fitted on an isolation pad on your D/A, only use a slow speed though , you will be amazed at the results.
