scratches from sand on windscreen
Submitted: Thursday, Jun 01, 2006 at 20:10
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sam_84h
When i was on fraser the wipers got accidently flicked on, not only did it make a terrible noise, but it left scratch lines all over the screen, i've put in a heap of elbow greece with a cutting compound polish, hard to tell if it made a difference, scratches are still there. to get the screen professionally polished its $110, hardly worth half a new screen. My question... Is there a polish specifically formulated for glass? should i just put up with it? or is there a way to cure my anal frustration with scrached glass?
Reply By: Member - Doug T (QLD) - Thursday, Jun 01, 2006 at 22:30
Thursday, Jun 01, 2006 at 22:30
sam_84h
Long times back in the late 60s I was involved in the hobby of Lapidary, thats gemstone cutting and polishing, I use to use some synthetic stone called Goldstone and it came from Italy ,it was Glass with copper fillings in it , and I polishrd it to a high finish with Tin Oxide mixed to a slurry with water on a wooly buff, If the scratches are to deep to polish out you could try using a 500 grit silicon paper and finish it with a 600 silicon paper then apply the polish,after the Tin Oxide/water I used another one to finish it off but can't remember what it was called but it was a tan color and messy , glass is like Opals , can't let to much heat build up or it will pit, use lots of water if you use the grit papers , I HAVE NOT TRIED THIS REMEDY ON A WINDSCREEN
AnswerID:
176237
Follow Up By: Member - Doug T (QLD) - Thursday, Jun 01, 2006 at 22:40
Thursday, Jun 01, 2006 at 22:40
Just looking on the net for compounds and see that now Tin Oxide is $58.00 kg Phew
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432254
Reply By: Member - John R (NSW) - Sunday, Jun 04, 2006 at 20:53
Sunday, Jun 04, 2006 at 20:53
I just remembered Sam, if you get someone to polish the scratches out, there is a chance that you will get distortions in your vision as a result of polishing now changing the generally perfectly smooth and consistent thickness of the outside glass layer. This will be quite obvious if the operator has to concentrate on any deep scratches.
To get an idea of difference, take a look through your run of the mill plate glass window at an angle. Traditionally "rolled" glass has undulations and distortions which are quite easy to see. Windscreen glass is "floated" and is optically very consistent when looking through it at almost any angle.
AnswerID:
176706