BAL Best way to apply adhesive , floor job

[LM]

Thanks for the responses chaps, so the General consensus is, spread the floor with 10mm notched trowel, then also back butter tile with notched side also, and make sure notches of floor and back of tile run in the same direction to allow air to escape for maximum compression?

You'll only need to back butter that tile with the flat side of the notch so as to leave a thin skim.

 

[Rich Midge]

To allow the air to escape therefore allowing the notches to compress for a more solid bed. Swirled like spreading patterns cause the air to be trapped and the compression resistance won't allow the tile to fully colapse the notch and in turn prevents a true solid bed.

This is exactly how I was taught to do it 20+ years ago and it's how I still spread addy today.

 

[kevsalt]

if your sub floor is totally level ...one size trowel might do ...i use 12mm minimum on the floor ...4mm ribbed for back butter...if its unlevel they all come out ..15mm...20mm round notch...etc i dont use clips