>From the photos it looks like oils or some type of chemical..I would hone the floor and than scrub it with a good alkaline and than polish<br><br><div class="gmail_quote">On Thu, Jun 28, 2012 at 5:57 AM, Stuart Young <span dir="ltr">&lt;<a target="_top" href="mailto:santafefc@sbcglobal.net" target="_blank">santafefc@sbcglobal.net</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>





<div bgcolor="#ffffff">
<div><font face="Arial">Good afternoon,</font></div>
<div><font face="Arial"></font> </div>
<div><font face="Arial">We will be working on some thassos marble tiles in 2 
bathrooms in a hair salon. These tiles form a small band around the rooms on the 
wall and the majority of the tiles look like new (see photo).  Under the 
hand dryers, however, there is some darkness, particularly around the edges 
(photo looks darker than actual tiles - they are mostly white). </font></div>
<div><font face="Arial"></font> </div>
<div><font face="Arial">We are not sure of the cause of the discoloration - it 
could be from water from those drying their hands - who knows what chemicals or 
products are being used in a salon.  Is it possible that the hand dryers 
(which are directly above these stones) could discolor the tiles from 
heat?</font></div>
<div><font face="Arial"></font> </div>
<div><font face="Arial">Our plan of attack is to hone and polish these 
tiles.  Anyone have any other suggestions?  What would be the best way 
to prevent this from happening in the future?</font></div>
<div><font face="Arial"></font> </div>
<div><font face="Arial">Stuart Young</font></div>
<div><font face="Arial">Santa Fe Floor Care</font></div>
<div><font face="Arial">Austin TX</font></div><hr>
<p>Powered by <a target="_top" href="http://www.discussthis.com" target="_blank">http://DiscussThis.com</a>
<br><a target="_top" href="http://www.discussthis.com/members/sccpartners@stoneandtilepros.com" target="_blank">
Visit list archives, subscribe, unsubscribe or change your subscription preferences
</a>
<br>
<a target="_top" href="mailto:sccpartners@stoneandtilepros.com" target="_blank">Start a new conversation (thread)</a>
</p>
</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>
<a target="_top" href="http://www.stoneandtilepros.com" target="_blank">www.stoneandtilepros.com</a><div><a target="_top" href="http://www.safeandcompliant.net" target="_blank">www.safeandcompliant.net</a></div><div><br>Recommended stone care products  <a target="_top" href="http://www.stonecarecentral.com/?Click=2149" target="_blank">http://www.stonecarecentral.com</a></div>
<div><br></div><div><div><div>Many of my articles can be found at <a target="_top" href="http://www.stoneandtilepros.com" target="_blank">www.stoneandtilepros.com</a></div><div>Listen to my radio show   <a target="_top" href="http://www.blogtalkradio.com/drfred" target="_blank">www.blogtalkradio.com/drfred</a></div>
<div>office             321 514 6845      </div><div>See my specialty products at  <a target="_top" href="http://www.godrfred.com" target="_blank">www.godrfred.com</a></div></div></div></div><br>