need glass deep scratch restoration tips.

We used to call in specialist to our aircraft shop to buff out windshields. Granted, aircraft windshields were either lexan or plexiglass. In either event, they used a diamond paste to buff out the scratches.

The thing they looked at was how much material would be left after buffing. We had minimum thicknesses for each windshield. The company knew how much their process would remove and had the ability to gauge thickness before they began.

My 2¢ worth: I am a fan of Eastwood's buffing products. I would not hesitate to use them on side or rear glass. If I'm going to drive the car on the highway, I want the strongest windshield I can get. I do not think that buffing out deep scratches on a windshield is the way to go.