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
Should Cambrian Black granite be sealed?
Viewed 358 times since Fri, May 23, 2008
Fill holes in tumbled travertine bathroom floor?
Viewed 315 times since Sun, Dec 2, 2007
Granite sealing
Viewed 303 times since Sat, Aug 4, 2007
limestone questions
Viewed 376 times since Mon, Jun 22, 2009
Cloudy spot on granite
Viewed 387 times since Mon, Jul 9, 2007
Cosmos granite
Viewed 476 times since Sat, May 31, 2008
Install limestone or not in bathroom and tub area
Viewed 312 times since Mon, Oct 20, 2008
Black impala has water rings
Viewed 266 times since Mon, Mar 23, 2009
Black Zimbabwe Granite - water staining
Viewed 449 times since Mon, Apr 14, 2008
Marble top table
Viewed 296 times since Fri, Jan 4, 2008