Soft polished stones or soft glazed tiles can scratch when being grouted with a sanded grout so always test the sanded grout with the tile first to make sure it doesn t scratch it.
Will sanded grout scratch marble tile.
1 4 grout lines in marble omg.
If it s scratched your more than likely stuck.
Marble is such a pita.
Acrylic latex grout is a good alternative but it will require sealing.
1 8 wide grout joints can use either one but sanded grout tends to be more stable and doesn t shrink as much.
If it s smaller than 1 8 of an inch use unsanded grout.
You should never use sanded grout with glass metal or marble tiles since it can scratch the surface and cause damage.
Cutting the grout to half way down and then a polish may work.
Epoxy grout works great to resist stains but it may be a bit difficult to apply.
Rule of thumb is dont use sanded grout on marble it can interfere with any refinishing and repairs.
In practice some veteran tilers relate that the abrasion from sanded tile grout is likely not enough to scratch tile surfaces.
If thats what it is chances are youre going to have a problem.
Unsanded grout is usually recommended for tile that is easily scratched such as natural stone glass and certain porcelains and ceramics.
In theory the sand content in sanded tile grout may damage these surfaces.
If the joints between the tile are.
When using a floor machine to clean or polish it can pull small bits of sand from the joints.
Black marble is typically very soft.
Grout polished marble with tight joints up to 1 8 inch with nonsanded grout since sanded grout will scratch the surface of the marble.
The sand in grout can scratch soft marble tiles.
You will never be able to polish that floor if has sanded grout in it.
Sanded grout is normally recommended when the grout seams are 1 8 inch wide or more as the sand provides extra bonding power that prevents cracking.
I called the tile store and they said sanded grout would indeed do that to the polished marble.
Always use unsanded grout when working with a soft smooth polished tile like limestone or marble since abrasive sanded grout will likely scratch its surface.
Also the nonsanded is in platinum and the sanded the tile guy used also says platinum on the bag but looks white.
Some care is required if using sanded grouts on highly polished tiles as the sand can actually scratch the surfaces.