not sure there is a way to test for a densifer without taken a core. However with that said you should be able to densify over it.<div><br><br><div class="gmail_quote">On Fri, May 6, 2011 at 10:17 AM,  <span dir="ltr">&lt;<a target="_top" href="mailto:flooramor@aim.com">flooramor@aim.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Fellow colleagues,<br>
<br>
How do you test for densifier? Looking at a terrazzo floor from the 1960s that has already been polished before, but is obviously now showing signs of wear and abuse, mainly in the traffic areas. It has a  nice sheen in some areas but not a lot of clarity.<br>

<br>
So how does one test for pre-existing densifier? Is it bad to densify again?<br>
<br>
Thanks in advance for the replies.<br>
<br>
J<br>
<br>
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