What is Efflorescence?

Efflorescence is a natural phenomenon. Water in the form of rain, condensation and dew penetrates the pores of the concrete and partially dissolves the lime. The solution diffuses to the surface of the concrete and the water evaporates, leaving a white lime haze which is not readily soluble.

*Efflorescence is a crystaline deposit on surfaces of masonry, stucco or concrete. It is whitish in appearance, and is sometimes referred to as “whiskers”.

What can I do about Efflorescence?

Power washer

Diluted white vinegar can be used on efflorescence

Stiff bristle brush

How do I clean a grave marker?

General Purpose Bronze Cleaner: Salt, Vinegar, and Flour. Dissolve 1 teaspoon salt in 1 cup white vinegar. Add enough flour to make a paste. Apply paste to bronze and let sit for 15 minutes to 1 hour. Rinse with clean, warm water, and polish dry.

If using the vinegar/water/flour method, make sure the water you are using is warm DISTILLED water. You can also gently rub it clean with a cloth dipped in mineral spirits.