Yesterday, in common with a great many people, I shifted about 3" of snow from the roof and windows of my car using a clean brush (ex dustpan and brush set from the kitchen). Somehow and annoyingly the sliding down of the snow on the windscreen has produced a near vertical light scratch in the glass, fortunately near the passenger's eyeline.
Deep down, common sense tells me that this cannot be polished out without causing an optical aberration, if indeed, it can be polished out at all. However I would like to know whether anyone has successfully removed a scratch from their windscreen without exacerbating the problem? Eventually, I'll get used to seeing it when I gaze across the screen but at the moment I am finding it most annoying as it is the first time in 50 years of driving etc. that I have ever done this.
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If you can feel the scratch with your fingernail, then realisticly it can't be polished out. You might be able to lessen it a bit though.
Do a search for cerium oxide or jewlers rouge.
You'll need either a high speed polisher (pad in an electric drill) or a huge pot of elbow grease though.
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This link
www.honestjohn.co.uk/forum/post/index.htm?v=e&t=45...4
leads to a number of earlier discussions on this. As AR-C states, jewellers rouge is the only very very mildly abrasive material to consider using on a windscreen. Glass is actually quite soft! I once did irreperable damage to the windsdscreen of a one week old Citroen SM, polishing squashed bugs off the screen with a nylon pot scourer! It didn't matter much as I wrote it off a week later!
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A couple of years ago I had a scratch on the outside of the drivers door window. The local car dealer recommended "ceramic/halogen hob cleaner".
I bought in a well known supermarket for around £2. It reduced the scratch but did not completly remove it.
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I once had a nasty wiper arm scratch polished out professionally.It did not remove it completely but made a vast improvement.However,I am sure the screen became more suceptible to the 'sandblasting' effect of grit etc.At £40 I am not sure I would bother again,might be better putting the cash towards replacement instead.
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Be interesting to know what constitutes a valid insurance claim for new glass. We had a new screen last year because of a crack and the visibility is noticeably better. The old one was OK, but had accumulated a few years' worth of wiper marks, so the new glass represents a marked improvement. Without the crack, we would have lived with the old one, but there must be a point when a screen needs replacing, cracks or not...
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I've had success with toothpaste followed by Brasso. Take care with the toothpaste, it's actually incredibly abrasive. Also works well on CDs.
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