messagenews: snipped-for-privacy@r1g2000yqj.googlegroups.com...
Depends on the particle size. Brasso, for example, is quite good in general terms because its abrasive particles are small. (I have no idea whether it's good enough for this job.)
All surfaces, even mirrors, are entirely composed of scratches, just small ones.
Dave
The reason I asked, was that I used to work on military fast jets and one had a very bad scratch on the windscreen that was being polished out by our professional windscreen polisher. The first time I passed by, it sounded like he was using 80's grit wet and dry.
The criterior for perfection, was that when he had finished you could look through the window and not see anything wrong looking at a chequerboard through the polished window.
messagenews: snipped-for-privacy@r1g2000yqj.googlegroups.com...
And on the hardness of the material silica (silcon dioxide) is a lot harder than China clay *basically aluminium silcate hydroxide)
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