Dear Wayne:
If it's just a film you can remove it with a good quality alkaline cleaner with chelates in its formula rated for natural stone, like MB-3, and lots of scrubbing.
If it's a large floor you will need a professional floor machine and with red nylon pad under it.
Rinse thoroughly a couple of times and then finish with a nice clean with MB-1.
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: 776
Created On: Mon, Nov 12, 2007 at 4:33 PM
Last Updated On: Mon, Nov 12, 2007 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=776