Edward,
There are plenty of videos on the Internet for you to watch the best way to polish.
And on the Harmfull parts( Aluminum Oxide) is a direct cause to Alzheimer's Disease and
Other lung related disease don't take any risks buy a good mask for painting,polishing
Brake work and carbwork etc I have been a motorcycle mechanic for 36 years and i
Don't take any risks.
Thanks.
Steve.