If you use a latex modified or polymer modified cement grout then the haze can be a latex haze which an acid will not remove.
Cleaning grout haze on marble.
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.
Try a sugar.
Fill a bucket halfway with warm water using about a gallon of water.
Remove grout haze with water and cheesecloth.
Grout haze and residue is typically removed with an acid solution after the tile is.
How to get rid of grout haze on your stone tiles avoid grout removal products.
This will remove the grout haze and you ll want to use this product as your regular marble safe shower cleaner as well.
If you do get grout haze then use the scp.
Most grout haze removers are acidic and will etch the marble dulling the surface and ruining the finish.
Make sure the water is warm as this will.
As soon as possible after installation brush away loose grout from the surface of the stone.
While sealing the grout a lot of sealer has marked the tiles.
There are special cleaners for removing latex haze so go to cleaners and sealers to get links to manufacturers of these products or contact the grout manufacturer who might offer a latex haze remover.
I tested a small area today with a regular cloth and it wasn t going anywhere.
Because it is a polished marble made of calcium carbonate it makes it acid sensitive.
Use gentle back and forth motions with the toothbrush to clean only the grout.
Avoid getting the baking soda on the marble or brushing.
Protect your hands with rubber gloves and dip your cheesecloth or terry cloth in water.
Brush away loose grout.
Move to chemical grout remover if the sponge and water don t work.
The key is to use a mild.
Read the directions carefully as different.
How to take haze off of marble tile 1.
How to clean marble grout step 1.
You can start cleaning it right after the grout lines dry.
So double duty from the same product.
Of course rinse the spot with clean water right away and wipe dry.
Bath shower soap scum hard water remover recommended in the article comments above see links above.
Fill a sponge with water wring most of it.
Wring thoroughly as too much water can damage.
Add one cup of.