Since the dots appear on very
piece, One plausible explanation is the installer set the stone using only
spots of thinset. Normally the back should be buttered (as was mentioned )
with the flat side of the trowel and the appropriate size notched trowel used
on the substrate using dots only to compensate for lippage. By tapping around
the floor with a wooden broom handle you should be able to detect hollow
sounding areas around the spots which would confirm this theory. Be careful if
you end up working over this type of floor. Why would someone install a floor
using spots only ? Be cause its easier and faster to set a lippage free floor.
Just last week I installed a
Crema marfil floor. In spite of me taking every precaution I can think of I
still managed to etch a few tiles with drops of water from my sponge bucket. :
(
From: rivera.gm@gmail.com
[mailto:rivera.gm@gmail.com] On Behalf Of Georgia
Sent: Wednesday, December 16, 2009 10:05 AM
To: Restoration and Maintenance
Subject: RE: [sccpartners] limestone damage Emailing: DSC00431.jpg
Maybe the possibility of
another contractor attempting something?
On Wed, Dec 16, 2009 at 1:01 PM, John Freitag <jfreitag@thestoneandtileschool.com>
wrote:
Stephen,
From the pictures it appear
the areas are etched, the caused who know for sure. What’s interesting is the
round appearance of the etching. This could be caused by the setting materials
,it could be efflorescent that making the stone appear etched.
The fix is going to be
repolish the stone, if these are etch marks if polishing does not remove them
then you may need to hone and polish. Prior to pricing this job do a test
to see what you need to do to correct the problem.
If this stone is stone is not
a polished finish and is more of a honed finish you could use a honing
powders or the velosity pads from StoneCare Central
John
E. Freitag
President/Director
The Stone and Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com
From: Stephen Webb [mailto:stephen@newlifemarblerestoration.com]
Sent: Wednesday, December 16, 2009 12:24 PM
To: Restoration and Maintenance
Subject: [sccpartners] limestone damage Emailing: DSC00431.jpg
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