Butter up underside of floor tiles?

[R Montgomery]

I always skim the back of handmade tiles to even the surface,same with ribbed back tiles,large format tiles and stone.Sometimes and in some places the skim will turn into back-buttering.I find that this is a more accurate method,for gaining full coverage,than going to a larger notched trowel.You can easily adjust the thickness of the skim to take into account differences in the thickness of the tile.

 

[Lucas 2]

yeah I meant skim the underside not 'butter up' unless absolutely nec. as could get too much adhesive - my mate always skims the underside of floor tiles to get better adhesion......cheers for replies :smilewinkgrin: