If the joints between the tile are.
Sanded or unsanded grout for wall tile.
Non sanded grout 371.
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For grout lines 1 8 to 1 16.
Generally unsanded grout is used for tile applications with narrower grout joints from 1 16 to 1 8.
Unsanded grout contains no sand and is best used for thin grout lines and for delicate tile surfaces as well as for most glass tile.
How to grout tile.
Sanded grout contains fine sand and should be your choice for most tiling projects because it is cheap and provides a tight lock.
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Sanded and unsanded grouts are usually sufficient for residential uses but many homeowners and builders are moving completely away from it.
Unsanded grout is most often used on vertical surfaces such as a kitchen backsplash.
Inch or smaller which is typical of most backsplash tile installations.
Non sanded grout used in lines 1 8 or more will slump crack and otherwise not provide proper fill.
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.
It is also recommended for glass tiles metal tiles and polished stone because sanded grout can scratch them during installation and cleanup.
Unsanded or non sanded tile grout.
Sanded grout will not properly compact into thinner grout lines.
If you do not have experience with this just read product s specification and everything will be ok.
Sanded grout can damage smooth tiles.
These steps for applying grout will improve your tiles placement and appearance.
Unless it is a modified formula sanded grout should be sealed after installation.
Unsanded grout basics.
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.
Use sand rich plaster for floors and the other one for walls.
Unsanded grout is recommended for grout lines that are.
The harsh aggregate material present in sanded grout can damage delicate materials such as granite marble limestone and other soft stones.
Some care is required if using sanded grouts on highly polished tiles as the sand can actually scratch the surfaces.
Another consideration when choosing between sanded vs.
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.
Unsanded grout is the tile material that you re working with.
It has a smooth texture and clings well to vertical surfaces which makes it useful for grouting ceramic wall tiles.
Testing the grout on sample tile is a good idea.
Sanded grout can work a lot like sandpaper.
Since wall tile installations with narrow grout lines are less prone to cracking the extra durability of sanded grout won t matter.