If by chance the grout was an epoxy grout you re toast.
Remove excess dried grout off marble.
When the mortar or thinset dries on the tile it becomes difficult to remove.
The film will be somewhat off color and oily to the touch.
It s virtually impossible to remove excess epoxy grout from tile surfaces without damaging the tile.
Wet grout is easy to wipe away with a damp sponge but because it is comprised mainly of cement it can be very difficult to fully remove dried grout from porcelain tile.
Unfortunately when you remove the grout there will be a film left behind.
When the excess has not been properly cleared from the tile surface what little that.
Removing dried grout from porous travetine tiles can be as easy as wiping it with a damp cloth or as involved as dissolving it with a commercial grout remover.
This oil will make installing the marble floor difficult because the new grout will not adhere to.
The longer you hesitate to remove the grout the harder it becomes to remove.
The main component of most grouts is portland cement.
It won t harm your carrara marble at all.
How to clean grout if it dries completely.
It usually takes a newly grouted surface several days or weeks to become fully hardened.
You can start cleaning it right after the grout lines dry.
It is very important to remove the thinset from the tile before it fully dries.
Step 3 remove grout film.
Grout haze is a byproduct of tile installation during which the entire surface gets covered with grout.
Depending on the marble tile it may not be that noticeable so take a good look at it.
Fortunately there are a few methods that can help to remove even the most stubborn dried on grout from tiles without damaging the finish of the tile.
When you install a new marble tile floor backsplash or tile surround you are bound to get a small amount of thinset on top of the tile when you grout.