My guess is that it is a coating that needs to be removed from the floor !

--- On Sun, 10/18/09, <> wrote:

From: <>
Subject: [sccpartners] Slate with Etching ???
To: "Restoration and Maintenance" <>
Date: Sunday, October 18, 2009, 2:03 PM

Can anyone ID this problem? Customer sent this to me and before I go running out to the house, I thought Id get some feedback.
Paul Bunis
Xtremeclean Tile - Boston Stone Restoration
Specialty Stone Care