From:
John Twilley <jtwilley@xxxxxxxxxxx>
Date:
Fri, 28 Jun 2002 10:09:27 -0400
Subject:
Free Marble!!!
Linda,
There are many different ways of testing for silicates in a lab but there
probably isn't any reason for you to do that. The material that I have seen
wouldn't make any practical difference in those cases where the marble is
uniform and white. If what you have is attractive, there's no reason not to use
it. If you were trying for the highest possible gloss on the finish, you might
find that with extended time spent on the final polishing stage a little bit of
surface relief develops (sort of an orangepeel effect) due to the greater
hardness of silicate grains. That can be minimized by using very efficient
(i.e. hard, sharp) abrasive in the last, pre-polishing steps, doing a uniform
job at that stage, and then not over-extending the polish time. If you're not
after a mirror-like finish, the problem probably won't arise.
John
Linda wrote:
Quoted text begins.How will the silicates affect the polishing? Is there any easy method to
tell if a piece has silicates?
End of quote.
- References
- message 00034: Free Marble!!! - Linda (27 Jun 2002)
- message 00035: Free Marble!!! - John Twilley (27 Jun 2002)
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