And using an enhancer on that area hasn&#39;t helped with blending it in?  How deep does this etch go?<br><br><div class="gmail_quote">On Fri, Feb 17, 2012 at 9:23 PM, Mike Marsoun <span dir="ltr">&lt;<a target="_top" href="mailto:nulifesc@bigpond.com">nulifesc@bigpond.com</a>&gt;</span> wrote:<br>
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------Original Message------<br>
To: Restoration and Maintenance<br>
Subject:<br>
Sent: Feb 17, 2012 11:40 AM<br>
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Having a hard time getting a good clean on these travertine floors. Pictured is an acid spill that cleaned it beautifully and caused minor etching.  Thinking of a nuclear option with some phosporic acid, then a nylo grit brush afterwards to buff out the etching. Yes, I have been doing this for 25 years and I know you don&#39;t use acid on m/l/t, BUT the alkaline&#39;s are not doing it and I do not want to cover it up with grout...too slow. Thoughts.<br>

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