I have probably put on over a thousand how-to clinics in my life, (easily).
Here are the top 3 questions I get asked at every clinic, in no particular order
* How can I remove a scratch in my window glass?
* How can I remove a scratch in my car's finish?
* How can I remove buffer swirl in my cars finish?
For the glass question, I can usually offer how I polish glass by hand or machine to remove film build-up and water spots, but for actual scratches
*in* the glass, I recommend the only company I have ever heard that offers the products and tools to remove light abrasions
*on* glass, not specifically, scratches
*in* glass.
The Eastwood Company
From their website,
Glass Polishing Kit Pro
Item No. - 40011
This kit can be used to clear off years of wiper haze from your windshield and save hundreds of dollars in replacement costs. Ideal for hard-to-find windshields on older cars.
Try this test:
Run your fingernail over the damaged area on your windshield. If nail doesn't catch, this kit will work.
If your nail does catch try the Deep Scratch Kit (40030). Mark the damaged area, mix the special Glass Polishing Compound with water, attach polishing buff to your drill or low speed polisher (1,500 rpm), and start polishing!
Includes: 1/4 adapter, 1 lb Glass Polishing Compound, 2 7/8" x 1" Thick Buffing Wheel.
Regular Price: $34.99
Hope this helps...
Mike