Dear Glynn:
Aside from the fact that you should have never used a product like that on natural stone, I think that you'd be better off by trying to solve the real problem instead of working on its consequences, don't you?...
J
Your best bet is to consult with a reputable stone restoration contracting company in your area and have them find you the reason of your mildew. After that and once the problem has been taken care of, you will tackle the mildew with a mildew stain remover rated for “natural stone” like MB-9.
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: 692
Created On: Fri, Oct 26, 2007 at 12:02 PM
Last Updated On: Fri, Oct 26, 2007 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=692