Home » Categories » Natural Stone Q & A’s

removing orange mold along grout lines on waxed limestone shower floor

Q. I have a waxed limestone shower that I only clean with stone cleaner as recommended by the sealer. I notice that there is an orange color (mold?) that appears along some of the grout lines but not on the stone tiles themselves. The stone cleaner does not seem to remove all remnants of the orange despite repeated brushings with the stone cleaner. Can you recommend anything else to help remove the orange mold along the grout lines. I have never usesd any bleach or tilex type cleaner on the mold for fear it might damage the finish on the limestone tiles. Appreciate any ideas you might have. Thank you.
 
A. Hi Barbara. Most cleaners are specific if you have orange staining it is probably mold. You will need to use a stone safe mold and mildew remover like MB-9 which will more than likely remove the stains. Bleach will work as well and won't damage the limestone whether it is honed or polished.
 
However it may degrade the wax,so you will have to put another coat of wax on. Do not use anything like Tilex ever. It will etch your stone.
 
You may want to have a pro look at it. To find one in your area, go to the Find a PRO section at www.stoneandtilepros.com.
 
Stu Rosen
 
Attachments Attachments
There are no attachments for this article.
Comments Comments
There are no comments for this article. Be the first to post a comment.
Related Articles RSS Feed
matching countertops with floor
Viewed 649 times since Mon, Sep 3, 2007
Black Granite Tile
Viewed 667 times since Wed, Apr 15, 2009
Soapstone Fireplace
Viewed 478 times since Thu, Nov 29, 2007
Jerusalem stone
Viewed 492 times since Sun, Sep 30, 2007
Granite Tile In Shower holding water in
Viewed 623 times since Fri, Apr 11, 2008
Re-sealed Black Galaxy
Viewed 417 times since Mon, Dec 17, 2007
Black Mold on Carrara marble statue
Viewed 623 times since Fri, Oct 26, 2007
granite cleaning
Viewed 581 times since Thu, Aug 7, 2008
cleaning a granite countertop
Viewed 565 times since Tue, Apr 29, 2008
Slate shower tile - terrible soap scum
Viewed 467 times since Mon, Aug 20, 2007