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.
Grout for marble mosaic tile.
Generally unsanded grout is used for tile applications with narrower grout joints from 1 16 to 1 8.
Finished grout lines will vary from 1 16 to 3 16.
The layout of these tiles means there are numerous lines to fill so spreading the grout evenly across the entire surface is important.
Use a non sanded grout to protect both the marble and the grout from discoloring too much.
How to grout thin joint lines in mosaic marble floors 1.
Spread the grout with the rubber grout float filling the joints as you go.
In these cases a sanded grout is needed to fill the joint.
Sanded and unsanded grouts are usually sufficient for residential uses but many homeowners and builders are moving completely away from it.
The light gray is also a fine choice but keep in mind that it will darken and maybe not match the tile color quite as well over time.
Some care is required if using sanded grouts on highly polished tiles as the sand can actually scratch the surfaces.
Spreading grout for mosaic tiles requires a little more care and attention than a traditional tile floor.
Actual finished grout spaces will vary from 1 8 to 1 4 if 3 16 spacers are used.
Note that using the smallest grout possible will increase installation time.
The additional structure of sanded grout is needed for wider grout joints from 1 8 to 5 8 and some even can go as wide as 1.
The majority of mosaic tiles are netted with a 1 8 inch grout joint.
Testing the grout on sample tile is a good idea.
If smaller spacers like 1 8 are used it will accentuate the size difference of handmade tile.
White grout is a risk in bathrooms though as everyone mentions.
Allow it to sit for a few minutes and then stir it again.
Fill grout joints on natural marble with joints larger than 1 8 inch with sanded grout.
First scoop out a portion of the grout using the rubber float.
Pull the edge of the float back across.
Mix the grout according to the package directions.
Just rub the tile s surface with a soft cotton rag that s damp with stone sealer.