Sapphire is mohs 9 Karl ----- Original Message ----- From: "Al Knoll" <al_knoll@PACBELL.NET> To: <vanagon@GERRY.VANAGON.COM> Sent: Tuesday, February 05, 2002 10:40 AM Subject: Re: OT: Window Glass
> The paint pros use #00 fresh steel wool for taking overspray off the glass. > > I don't know the Moh hardness of FE203 but the aluminum oxide on those > scotchbrite (tm) pads will scratch just about anything. Saw a former > neighbor taking bugs off the front of his new Chevy Blazer with one. I > mentioned that it might leave scratches, he said it's ok that his wife uses > one on the dishes. > > Later I saw him working with a little Dupont #7 rubbing compound. > > Sapphire is aluminum oxide nicely arranged. > > pensioner |
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