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ICAN/ATEX: How do I restore damaged ceramic tiles in restrooms?

November 6, 2012

Many cleaning professionals visit the International Custodial Advisers Network (ICAN) Ask the Experts page for insight and, every business day, we deliver advice to better help you perform your job.

Tuesday’s Question:ICANATEX Logo

I am having a problem with cleaning ceramic tiles in restrooms due to a previous housekeeper's error in judgement.

Toilet bowl cleaner was used to clean the floors and has left spotting on the floor.

They then tried to cover up the problem by putting down a floor finish to no avail.

tile floorWhat can I use to get the floor back to, or near, its original finish?

Tuesday’s Answer:

The original finish was probably none, so you may wish to start by stripping whatever was put down.

I can't say for certain, obviously, but I suspect the toilet bowl cleaner was a hydrochloric (HCl) acid-based one and it dissolved whatever grout film was left on the tiles when they were installed.

This would account for the spotting, and the solution  … - Lynn E. Krafft, ICAN/ATEX editor.

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