Sanded Grout For Polished Marble

Marble is a soft stone and not really a good choice for a countertop.
Sanded grout for polished marble. Usually most contractors use an epoxy based unsanded grout in these situations not traditional sanded or unsanded grout. Unsanded grout is often the best choice for smooth polished tiles like marble even if the joint width is 1 8 or larger. 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. So i used 1 8 spacers with my polished marble.
Grout polished marble with tight joints up to 1 8 inch with nonsanded grout since sanded grout will scratch the surface of the marble. If you have a polished stone such as granite marble limestone and some polished travertine you should be careful about using sanded grout. Non sanded grout should have been used. While sanded may be the correct choice for the size of grout lines it may not be the best choice.
Unsanded grout holds up fine everywhere as long as the joint does not exceed 1 8. 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. Yes you don t use sanded grout with polished marble because of the stratching problem and the typically narrow joints. Unsanded for the polished marble assuming you left an 1 8 or less joint.
Grout joints over 1 2 wide need a heavier gauge blend of sand to perform well. Yeah i know smaller is recommended. I called the tile store and they said sanded grout would indeed do that to the polished marble. Granite would have been much better.
Sanded grout should be your default choice for general use tiling such as for flooring and walls. Depending upon the polish of the stone the sand in the grout may actually scratch it. The polished bianca carera marble hex tiles on the floor are now covered in fine scratches and grout is set. Think of sanded grout as the default choice grout for everything except for a few outliers that absolutely require unsanded grout.
No easy fix here. 1 8 wide grout joints can use either one but sanded grout tends to be more stable and doesn t shrink as much. Sanded grout is widely available has the greatest range of mixed color choices and reduces grout shrinkage. Sanded for the tumbled marble shower floor.
Sanded grout should not be used with polished marble as it will scratch the suface as you have already seen.