Barry,
The white marks are probably scratches and will need to be diamond
hones out. I cannot open the pictures you sent so I giving you instruction based
upon your comments.
The 400 honing powders are probably not low enough grit to
remove the damage. Depending upon the depth of the scratch you could have stun
damage and that may never come out. As you recall in training we discussed the scratch
patterns and how to choose the right diamond to start with. I would use a
diamond on my hand machine and feather out the honed. When you get the scratch
out then you may want to use a honing powder to blend the area you worked on with
the remainder of the floor.
The dark area in the limestone may be just moisture that is in
the stone and need to dry out.
Caution , if this is a pores limestone when you hone it the
stone could darken form the moisture you put into the stone in the honing
process. Dry the floor a soon as possible using a fan. This would help eliminate
the darken of the stone.
If you can please send you pictures in another format.
John E. Freitag
President/Director
The Stone and Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com
From:
stonerestorer@gmail.com [mailto:stonerestorer@gmail.com] On Behalf Of Barry
Raduta
Sent: Sunday, June 27, 2010 6:43 PM
To: Restoration and Maintenance
Subject: [sccpartners] limestone staining
Howdy Partners !
I have a customer with a newly installed limestone and marble floor. the
floor is honed and in one specific area ( about 5-8 tiles) there are white
marks on the gray limestome that seem to have penetrated the honed
surface. the tile guy had them try to remove a mark with vinegar )
ouch!!!) and that left a semi dark ring around the white mark. i was
thinking of trying some 400 and/ or 800 honing powder to remove the white
marks, but i fear that the honed tiles won't match the rest of the limestone
tiles. a funny thing is that the surrounding marble tiles do not show
etching.
any ideas??? photos attached
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Thank You,
Barry V Raduta
Diamond Stone & Tile Care
215-816-7689
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Thank You,
Barry V Raduta
Diamond Stone & Tile Care
215-816-7689
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