Many thinsets max out at 1 4 in a single layer.
Thinset thickness for large wall tile.
So a 3 8 u notched trowel leaves a 1 8 bed of thinset beneath the installed tile.
A chemical reaction takes place within 30 minutes of mixing that starts the bonding process between the tile and the underlayment or wall.
Spread the mixture using a notched trowel whose notch size.
Mar 20 2019 the 2011 tile industry standards define the minimum bond layer thickness to be 3 32 after beat in but the maximum thickness has more to do with the manufacturer of the thinset mortar you are using.
Mapei large format floor tile 50 lb gray powder thinset medium bed mortar item 1103731 model 2184323 good adhesion for ceramic porcelain and natural stone tiles with one or more sides greater than 15 in.
In the case of travertine the back of the tile is smooth so a larger notched trowel wouldn t necessarily be required.