I had to purchase a pair of t tops and one of them is covered in watermarks. They are not too bad, but under the light they become visable. I have tried using compound (rubbing 3m) and wax, nothing is doing it for me. I used glass cleaner and other bug and tar remover before the compound. Anybody have any ideas?

 

White Vinegar, clay bar, or Zaino Z-12 Glass polish.....

 

or, believe it or not......"The Works" tub and tile cleaner, followed by glass cleaner to remove the film left from The Works.
also, spray The Works on a towel then rub it on the glass....keep it off any paint or trim.

 

I just used the Zaino glass polish and that worked great.

 

Stoners "Invisible Glass" has worked well for me..