Remove Soap Scum, Mildew from Marble Shower without Damaging the Marble?

QUESTION

How should I remove Soap Scum and Mildew from My Marble Shower Enclosure without Damaging the Marble? - We have a marble shower stall. What are the best ways to clean a) soap scum, and b) mildew; without damaging the marble?

ANSWER

ANSWER - The best way to clean soap scum and mildew from marble shower walls and floors is to use a cleaner designed for stone. Go to our website at www.CTaSC.com to Expert Answers to find Resources and click on Cleaners and Sealers for a list of manufacturers with links to their website.  Select a cleaner that is recommended for stone.

After the stone is fully clean to your satisfaction, then you should seal it with one of the recommended penetrating and breathable sealers. This type of sealer normally will not change the look of the stone. Having a sealer will help prevent the reoccurrence of soap scum and mildew. Also wiping down the shower walls with a towel after each use will help prevent a build up of residues and growths. Mildew is normally an indication that there is high humidity and not enough ventilation in the shower area, so you should open windows or install an exhaust fan to minimize the humidity.

Let the stone thorough dry before you apply the sealer. Apply a breathable penetrating type of sealer to the stone that does not enhance the color of the stone, unless you want that look. Depending on how porous your stone is, you will need to select the appropriate sealer. Marble is very dense so a standard penetrating sealer should suffice such as Miracle 511 Impregnator. Make sure when you apply the sealer, that you wipe off the excess after five minutes with a lint free cloth, so it doesn't cause a problem. Good Luck.

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