Dear Ruth:
“
I don't think it was ever sealed
”
I sure hope not. No stone should ever be sealed I a wet environment.
“
Is the polishing powder appropriate to use on this?
”
It depends on the severity of the etching (the dull spots). Sometimes it's enough and some other time it isn't: some light grinding (honing) must be done before polishing.
“
Would you expect the polishing powder to be appropriate to restore this area?
”
Same answer as before.
May I ask you now to please read and e-sign our Statement of Purpose at: http://www.marblecleaning.org/purpose.htm?
Ciao and good luck,
Maurizio Bertoli
www.marblecleaning.org – The
Only Consumers' Portal to the Stone Industry Establishment!
Article ID: 1023
Created On: Fri, Jan 11, 2008 at 7:09 AM
Last Updated On: Fri, Jan 11, 2008 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=1023