no a dark granite powder should work  you can also mix some of the granite powder with your normal powder<br><br><div class="gmail_quote">On Thu, Feb 14, 2013 at 5:37 PM, john jackson <span dir="ltr">&lt;<a target="_top" href="mailto:kcstoneguy@yahoo.com" target="_blank">kcstoneguy@yahoo.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:12pt;font-family:bookman old style,new york,times,serif">i have one for you, i have a serpentine with black sanded grout lines that just needs powder polished. I am afraid if I use a marble polish I will fade the grout lines. Would a dark granite powder work or should I just stick to running the Vortex pads to 3000? <br>
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</div></blockquote></div><br><br clear="all"><div><br></div>-- <br><img src="http://www.stoneforensics.com/stone-detective.png" width="200" height="129"><div>Frederick M. Hueston PhD<br><a target="_top" href="http://www.stoneforensics.com" target="_blank">www.stoneforensics.com</a><br>
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