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Wednesday, July 30, 2014

Question

There is a problem in one of the school district's kitchens where food is prepared. It appears that grease and other soils are embedded in the quarry tile and grout. What chemicals and or process should I use to clean the floor?


Answer

Althougth grease can build up on quarry tile and grout. Quarry tile normally has a low absorption rate, meaning that it doesn’t readily let substances penetrate into the surface. It should not prove too difficult to remove grease from the surface of the tile.
Ask your sanitary supply house for a degreaser, mix with warm or hot water according to directions, and allow the solution to dwell on the tile while you agitate the surface with a deck scrub brush for five to ten minutes to penetrate and loosen the build-up. Pick up the slurry with a wet vac and rinse well. Build-up in the grout lines may require some agitation to break it free, a good degreaser and a repeat scrubbing should do the job. If that doesn't work you may want to try an acid based anti-slip or grout restoration product that is specifically made for use on clay tile and cement based grout. Again your local supplier can provide a product or a number of private companies specialize in providing this type of service.
Lynn E. Krafft, ICAN Associate Editor for ATEX
lekrafft@juno.com