Join Date: Dec 2006
Location: Rockford, MI, USA
They can be polished out using one of the more abrasive tooth pastes with a cloth by hand.
I have also used a polishing wheel similar to the ones use on a stationary grinder in my drill with the rubbing compound. Always with very light pressure, excessive heat generated from hard pressure can cause the plastic to bubble inside. Plan on several hours.
I used this method to repair a 1982 Yamaha Seca windshield in 2018. I could not find a replacement. and it has a couple of bubbled areas.
'07 K1200GT Crystal Gray Metalic
'00 Ducati 900 Monster