Thursday''s Ask the Experts question from a cleaning professional on the
International Custodial Advisors Network (ICAN)
"Ask the Experts" page:
Some tile flooring has a gray discoloration on some of the tile in some small rooms. Stripping did not take it out. Do you have a remedy to remove this discoloration?
The answer:
Two causes are most likely. First, if any of the wasted slurry (stripper plus dissolved floor finish) dries on the floor prior to removal, it will leave a gray residue. Remaining residue is often identified by the fact that it covers over the tile pattern. Standard mopping may not remove dried-on slurry. Instead, it requires re-dampening the floor and scrubbing with the machine or autoscrubber.
Second, it could be...