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Hard Floor Care

Monday's Ask the Experts: Stained terrazzo

August 06, 2012
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Monday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: I have a newly renovated terrazzo floor and within the last few months we have had big dark stains appear in the terrazzo. When we strip floor the stains are remaining.Has anyone had problems with these type stains and, if you have, can anything be done to remove them?

The answer:

The terrazzo matrix has a porous cement in it and spills can seep down into the pores. At this point, no one likely remembers what was spilled or when, so this may be a challenge. The next time you strip off the topical finish, make a poultice of an absorbent material such as baking soda and place it on the spot with the expectation that the soda, as it dries, will pull the oil or whatever up from the porous material and reduce the contrast with the surrounding surface. You may have to ... — Lynn E. Krafft, ICAN/ATEX editor

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