Non sanded grout used in lines 1 8 or more will slump crack and otherwise not provide proper fill.
Sanded or unsanded grout for kitchen backsplash.
Unsanded grout is recommended for grout lines that are.
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.
I would use unsanded.
Inch or smaller which is typical of most backsplash tile installations.
Unsanded grout is most often used on vertical surfaces such as a kitchen backsplash.
When grout dries it can shrink down which is why sanded grout tends to be the preferred option for flooring.
This is used for floor tiles where the joints are 1 8 to 3 8 wide.
If the joints between the tile are.
For grout lines 1 8 to 1 16.
It is not as clean looking as unsanded though.
These tiling tips for beginners will give you the confidence you need to tackle tiling your own kitchen backsplash.
Finely sanded grout for ceramic tile.
There are four basic types of grout for ceramic tile.
Unsanded fine sanded quarry type and epoxy.
Sanded grout is used on larger gaps because the sand acts as an aggregate holding the large gap together.
Sanded grout will not properly compact into thinner grout lines.
Unsanded or non sanded tile grout.
You do see the sand in it where unsanded is very smooth.