Most grout haze removers are acidic and will etch the marble dulling the surface and ruining the finish.
Grout haze honed marble.
Before installation we used a marble sealer on them for about 14 hours.
Sometimes water alone after the grout has dried may not remove the residues.
1 i don t know if the white marble stones absorbed the grey grout and that is why it s darker looking than the marble tile when it wasn t installed.
Move to chemical grout remover if the sponge and water don t work.
While sealing the grout a lot of sealer has marked the tiles.
Apply the grout remover.
If it is actually a cement haze then if you take some diluted vinegar in a out of the way spot and apply it to the haze it should remove it.
How to take haze off of marble tile 1.
It utilizes nano sized particles to penetrate into small surface pores where it can.
Because it is a polished marble made of calcium carbonate it makes it acid sensitive.
It is clear that the grout has left a haze or film on the surface of the marble.
2 i read online that polished marble tiles do not absorb at all and that it is a myth that was perpetuated.
Nearly all grout haze removal products are made with acids and will etch burn the marble floor tile ruining the polished finish and leaving it dull.
Read the directions carefully as different.
To be safe we sealed the stones anyway.
I tested a small area today with a regular cloth and it wasn t going anywhere.
Dampen the grout haze with pure water first to see if that removes it.
Nanoscrub grout haze remover is an abrasive cream cleaner designed to work where other cleaners won t.
Marble etching can occur from acidic and or harsh chemicals.
Fill a sponge with water wring most of it.
The above product is made specifically for use on marble.
I suggest using a 50 50 solution of r55 intensive cleaner with water.
Grout haze removal solutions first if you already have acetone or mineral spririts you can try to remove the haze with these.
Fill grout joints on natural marble with joints larger than 1 8 inch with sanded grout.
However most grout haze removers are acidic and acids and other harsh cleaners will dull and damage the finish of your carrara marble or any marble.