Will Sanded Grout Scratch Marble Tile

The polished bianca carera marble hex tiles on the floor are now covered in fine scratches and grout is set.

Will sanded grout scratch marble tile.

1 4 grout lines in marble omg. Some care is required if using sanded grouts on highly polished tiles as the sand can actually scratch the surfaces. 1 8 wide grout joints can use either one but sanded grout tends to be more stable and doesn t shrink as much. Testing the grout on sample tile is a good idea.

Rule of thumb is dont use sanded grout on marble it can interfere with any refinishing and repairs. I called the tile store and they said sanded grout would indeed do that to the polished marble. You should never use sanded grout with glass metal or marble tiles since it can scratch the surface and cause damage. In practice some veteran tilers relate that the abrasion from sanded tile grout is likely not enough to scratch tile surfaces.

Also the nonsanded is in platinum and the sanded the tile guy used also says platinum on the bag but looks white. Black marble is typically very soft. If the joints between the tile are. If thats what it is chances are youre going to have a problem.

Grout polished marble with tight joints up to 1 8 inch with nonsanded grout since sanded grout will scratch the surface of the marble. Acrylic latex grout is a good alternative but it will require sealing. Cutting the grout to half way down and then a polish may work. Unsanded grout is usually recommended for tile that is easily scratched such as natural stone glass and certain porcelains and ceramics.

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. If it s scratched your more than likely stuck. 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. Marble is such a pita.

You will never be able to polish that floor if has sanded grout in it. When using a floor machine to clean or polish it can pull small bits of sand from the joints. 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. The sand in grout can scratch soft marble tiles.

In theory the sand content in sanded tile grout may damage these surfaces.