Windshield polishing

Chris_Top_Her

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San Antonio, Texas
:
'15 CX-5 Miata AWD
Has anyone here ever polished their windshield outside and if so did you use a clay bar or a fine sand paper to prep it?
 
Use fine sandpaper on your windshield? Good luck with that.
 
I used to use 0000 steel wool - but have since stopped. It will cut through hard debris but wont impact water spots.
 
I have no idea if this works but one of my nephews did detailing for a while and he used to use some kind of hydrochloric acid solution on windows. I think it was to just remove water spots though.
 
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