Dear Jill:
All the “water stains” you have on your stone are marks of corrosions (etchings) made by various acidic or other pH active liquids that became in contact with the surface of the stone, i.e.: After-shave, contact lens cleaner, toothpaste, any type of perfume and cologne, some generic cleaning product and so on through a long list. There's no product on the marketplace – sealer or what-have-you – that could prevent such surface-damages from happening. You will need the services of a bona fide stone restoration contractor, who will have to hone and re-finish your stone.
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: 1492
Created On: Sat, Jun 14, 2008 at 3:53 PM
Last Updated On: Sat, Jun 14, 2008 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=1492