Grout For Marble Mosaic Tile

First scoop out a portion of the grout using the rubber float.

Grout for marble mosaic tile.

Marble is porous and could easily absorb color from the grout so it s important to seal the stone before you grout even if you re using white grout. Testing the grout on sample tile is a good idea. 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.

Pull the edge of the float back across. 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. Sanded and unsanded grouts are usually sufficient for residential uses but many homeowners and builders are moving completely away from it. Mix the grout according to the package directions.

Finished grout lines will vary from 1 16 to 3 16. Spreading grout for mosaic tiles requires a little more care and attention than a traditional tile floor. Just rub the tile s surface with a soft cotton rag that s damp with stone sealer. Use a non sanded grout to protect both the marble and the grout from discoloring too much.

Actual finished grout spaces will vary from 1 8 to 1 4 if 3 16 spacers are used. 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 layout of these tiles means there are numerous lines to fill so spreading the grout evenly across the entire surface is important. If smaller spacers like 1 8 are used it will accentuate the size difference of handmade tile.

The majority of mosaic tiles are netted with a 1 8 inch grout joint. Apply the grout in the same fashion with the tip of the float and let the grout begin to harden before. Generally unsanded grout is used for tile applications with narrower grout joints from 1 16 to 1 8. Spread the grout with the rubber grout float filling the joints as you go.

Note that using the smallest grout possible will increase installation time. Some care is required if using sanded grouts on highly polished tiles as the sand can actually scratch the surfaces. If your mosaic tiles have a smaller grout joint such as hand cut. How to grout thin joint lines in mosaic marble floors 1.