You can accomplish the same with the 15 bag of regular modified thinset.
Best thinset for ceiling tile.
Additionally thinset comes in either unmodified or modified versions.
Mix the thinset with a mixer rather than by hand let it slake for five minutes and then mix it again.
Before you start hanging head bashers ceiling tile you should as always have the substrate properly prepared.
Gray thinset mortar is typically used with ceramic and porcelain floor tiles.
Square notched is a personal preference.
Because thinset is not affected by moisture it is best for floor tile and any tile in wet areas including shower floors walls and ceilings and tub surrounds.
It s also expensive stuff.
Superior bonding of porcelain to concrete backerboard and cement self leveling underlayment.
Unmodified thinset is composed of portland cement sand and water retention agents.
This helps to prevent tiles from cracking.
Non sag thinset is basically just thinset that is sticky it s great stuff.
Since thinset tile mortar may crack you may wish to mix it with a special latex additive to increase its strength.
They do not always need to be waterproof.
Thinset with small amounts of latex added are primarily used for large format tiles and stone tiles to help absorb flex from floors and walls.
Porcelain tile mortar is formulated for installations over concrete and backerboard.
I could not tell from your flow chart.
This mortar is designed for use with tile over 12 in.
Excellent for glass tile and radiant heating system installations use for interior or exterior.
While it is easier to obtain complete coverage with a u notched you must also use a larger u notched trowel to achieve the same bed thickness beneath the installed tile.
The instructions on their website for the board from 2015 state to use unmodified thinset for installling the usg 5 band over the seams but no mention of what type of thinset for the tiles so which is best type of thinset in this situation for foam board with large format tiles.
When you place the tile up and push it in you should hear a hssss or a similar noise that s hard to convey in text d that will be the creation of your vacuum.
By applying the tile onto the ceiling like this with a 1 2 bead of thinset around the perimeter of the tile it will create a vacuum between the tile and the ceiling when applied.