Smooth thinset in between lines and tesserae.
Thinset between mosaic tiles.
When i weave my lines i like the thinset to be smooth especially where there s more open space.
Your thinset should be like peanut butter.
Basically you could push down to bare floor or close to it.
If you attempt to set wall tiles using thinset without spacers you ll end up with a bunch of tiles that have slid into each other before the thinset has had time to set resulting in a giant mess.
When installing glass mosaics excess thinset will bleed through the grout lines and create a disjointed uneven tile project mess.
I have no reason for this other than personal preference.
Thinset is inexpensive and it fills in gaps and depressions.
Walls wainscots dry backsplashes are key areas where tile mastic tends to be used.
Expert tile setters recommend a 1 8 inch v notch trowel thinset application in even strokes for installing glass mosaic tiles.
A 4mm trowel is perfect size for most mosaics.
If it is too thin then you could have possible issues with mosaics and flooring.
Thinset is a bonding mortar which means it is a portland cement the same as used in concrete with polymers added to make it sticky and extra strong.
For outdoor and wet mosaics thinset is recommended instead of adhesives.
When used to tile walls it s strength allows you to set tile and if you re good with eyeballing you can set tile without the use of spacers.
Thinset is slow to set which leads to tile sag on vertical applications.