White Carrara has iron in the marble -  its normal that if water touches the surface the iron may oxidise.  We also take care of a large condo complex where every shower sill and marble in front of the shower as well as the first few tiles off the floor show a huge rusting discoloration.  There is little to be done to remedy the situation, removing it and applying an impregnator may help but the iron will nonetheless be exposed. In my opinion a label should be on these tiles to warn people of this situation before they make the purchase.

 

Anthony

Marble Maestro

 

 

Hey Guys, I have some what looks like iron stains in white carrara. I have already done work here and mixed some iron out in my poultice and it worked. It continues to happen in several condo units.The tile is on the floors and showers. This problem is happening on the floors only. Any suggestions and does anyone know why? Is it the water mixed with the thinset that makes it react this way? This install is about 1 year old. Pics attached. Thanks   Have A Great Day  Tony DiBartolo

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