My master bathroom is finished with marble tiles. Sometime last year I
believed my housekeeper had use some caustic cleaner that took the shine off
the tiles and left a dull surface on the floor and the step into the roman
tub/shower, a bench in the shower area, and about a foot up from the tub
floor along the wall opposite the step into the tub. I had the tiles
polished ($450.00) and took all the 'caustic' cleaners and put them in
cabinets she would not access to. The only cleaners my housekeeper then had
available to her were 'Method' products, Softscrub and Windex. Method is a
brand name of a environmentally friendly line of household cleaners that
clearly states they are safe for granite and marble. And which I have used
in the master bathroom for years with great success.
Several months have passed and the tiles have been damaged in the exact
areas in the exact way they were previously. And I believe by something the
housekeeper is using because I noticed it a day after she had last been
here. It was not immediately visually noticeable -the damage is more
noticeable when I squeegee the area after showering. The squeegee drags on
the dull, damaged area where it glides over the shinny, polished, undamaged
area.
In an effort to determine what was going on I used an extra tile that I had
and poured Tilex, chlorine bleach, Windex, Method Bathroom & Tile Cleaner,
ammonia full strength onto the extra tile. And I left the agents on the
tile far longer than my housekeeper would in the process of normal
cleaning - the only agent that did damage was the Tilex (which remember she
doesn't have access to) and it didn't leave a dull finish as I have
described. It simply left the outline of the 'puddle' of the product that
was placed on the tile.
Any suggestions as to what is happening here?