Article Number: 165 | Rating: Unrated | Last Updated: Tue, Aug 30, 2016 at 10:18 AM
Q. I recently laid out 30 sq feet of marbletile in an entry way. The tile originally was of a high glosspolished look. After the grouting I had a persistent grout haze that would not go away. The instructions on the grout said to use vinegar and water to remove the haze. After 4 cleanings, the tile is dull, still has some haze, and now has what I believe are etch marks (look like water spots ) on each tile. I need advice on how to remove the etch marks, the haze and properly seal, and maintain this floor. Please help.
A. Vinegar is an acid and has etched the marble. You should never use anything acidic on marble. To remove the etching the marble will need to be repolished. You can try doing a small spot yourself but it may require the services of a qualifed stone restoration company if the etching is too deep. The best product to use is a marble polishing compound, available at MB Stone Care.
If you decide the etch is too severe or too difficult for you to remove on your own, don't hesitate to contact a qualified stone restoration contractor. Click on the Find A PRO tab on www.stoneandtilepros.com to locate a PRO in your area.
ETCHING Occurs when stone is eaten (or neutralized) by an acid. It often looks like and is mistaken for a watermark.
GLOSS Luster or shininess, measured as light reflectance
GROUT A mixture of cement material and aggregate to which sufficient water is added to produce pouring consistency without segregation of the constituents
MARBLE A metamorphic crystalline rock composed predominantly of crystalline grains of calcite, dolomite, or serpentine, and capable of taking a polish
POLISHED The finest and smoothest finish available in stone, generally only possible on hard, dense materials. Or, a glossy finish which brings out the full color and character of the stone
RESTORATION Work performed, including cleaning, repair, and finishing, returning the stone to its original character, finish, and condition
TILE A thin modular stone, generally less than ¾ inch thick
Posted - Mon, May 18, 2009 at 2:16 PM This article has been viewed 2155 times.
Filed Under: Care and Maintenance
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