by classic_cruiser » Wed Nov 30, 2016 2:41 pm
I used a kit I had bought from JC Whitney two decades ago, it came with a drill-mounted polishing wheel and some soft powdered glass polish you add water to (similar to gritty toothpaste when made wet). It actually worked pretty well but you need to be very patient, it's a slooow process. On a parts car, i had a deep wiper arc (scratch) mark on a sunbird windshield (probably caused by running the wipers many times without the rubber blade) and I wanted to see if it could be taken out. The scratch was easily felt with a fingernail at first, and after about 4 hours of polishing it was almost invisible, but I ran out of patience... that was with factory glass though, not the thinner aftermarket replacements.
Terry
1980 Pontiac Sunbird, 2.5L Notchback Coupe
1979 Pontiac Sunbird with transplanted Monza 305, notchback coupe