Dear Joan:
No cleaner or so-called stone polish will ever polish any stone, let alone black “granite”, which is the most difficult of them all to polish!
Which also exclude the possibility that you could do it yourself.
L
Unfortunately, if you're lucky enough to find a professional stone restoration contractor who knows how to face polish granite, that is going to be your only option.
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,
Mauri
Article ID: 1294
Created On: Thu, Mar 6, 2008 at 10:11 AM
Last Updated On: Thu, Mar 6, 2008 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=1294