Tony,
The light marks maybe from a calcium binder that is in the granite
and that area actually etched lightly. You may need to hone the granite ( Use
Granite Diamonds) I would try starting around a 400 to see if the ring hones
out . then hone the area up to 3000 be sure to feather each grit. Then I would
polish using a Dark granite polishing powder, crystallizer and steel wool . This
should correct you problem. If the etch is not too deep try jus t polishing it
out first. Let me know if you have any questions, sorry for the delay in my
response I had class all this week
John E. Freitag
President/Director
The Stone and Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com
From: Excel Master Floor
Care [mailto:excelmasterfloorcare@cox.net]
Sent: Tuesday, June 08, 2010 11:43 AM
To: Restoration and Maintenance
Subject: [sccpartners] Black Granite
I
have a client with a jet black Granite countertop. It has light ring
marks from the bottom of glasses and an area that looks like a small
spill. The marks are a very light whitish color that does not show up in
a photo. There is no topical sealer or waxes on the Granite. Any
ideas of what it is and how to correct it?
Thanks,
Tony
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