Sometimes water alone after the grout has dried may not remove the residues.
Grout haze honed marble.
Dampen the grout haze with pure water first to see if that removes it.
Grout haze removal solutions first if you already have acetone or mineral spririts you can try to remove the haze with these.
Move to chemical grout remover if the sponge and water don t work.
You can start cleaning it right after the grout lines dry.
Apply the grout remover.
Marble etching can occur from acidic and or harsh chemicals.
Apply the grout in the same fashion with the tip of the float and let the grout begin to harden before.
I tested a small area today with a regular cloth and it wasn t going anywhere.
How to take haze off of marble tile 1.
Before installation we used a marble sealer on them for about 14 hours.
2 i read online that polished marble tiles do not absorb at all and that it is a myth that was perpetuated.
Fill a sponge with water wring most of it.
Of course rinse the spot with clean water right away and wipe dry.
Fill grout joints on natural marble with joints larger than 1 8 inch with sanded grout.
While sealing the grout a lot of sealer has marked the tiles.
The above product is made specifically for use on marble.
I suggest using a 50 50 solution of r55 intensive cleaner with water.
Nanoscrub grout haze remover is an abrasive cream cleaner designed to work where other cleaners won t.
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.
It is clear that the grout has left a haze or film on the surface of the marble.
It utilizes nano sized particles to penetrate into small surface pores where it can.
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.
To be safe we sealed the stones anyway.
Most grout haze removers are acidic and will etch the marble dulling the surface and ruining the finish.
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.