Acid To Clean Marble. Fill an eyedropper with the mixture and apply one to two drops to the stone. Here are the do s for cleaning exterior marble minimize the number of times a cemetery headstone is cleaned in its lifetime consider a plan to clean once a year. Before cleaning your stone with the muriatic acid test it on an inconspicuous area.
If needed a professional marble restorer can always be called to repair the damage. Buff dry with a cotton cloth or chamois.
Muriatic acid is available for purchase at home improvement centers and janitorial supply stores.
Don t use vinegar windex or bleach on marble. A secret in knowing how to clean marble countertops. From bright whites to dark browns and black marble there are plenty of options to choose from. You don t need specialty cleaners for marble.