The answer really depends on what type of tile.....what type of surface etc...
I don't profess to being an expert (YET) on this but as a general rule of thumb I think you can forget using Tub adhesives on large tiles. Someone else can tell me if I'm correct saying something like BAL single part flexible 'bagged' adhesive. (WHITE)
There is also the fact that larger tiles are 'usually' thicker so you may have a wheight issue if the substrate isn't in good nick.
If your walls are not perfect you have more chance of being caught out with large tiles so you might want to think of using thick bed solid bed trowel....
I'm sure some of you experienced tilers out there can put this right....
been 2 price job tiles r 40x40 goin on 2 plasterboards + plaster porcelain tile. ye thay did explain on corse but with ardex adhesives.no local suppliers next best thing is bal which i can get local but not 2 sure on what product 2 select
you can use a specific sticky for porcelain that comes in a tub you will have to prime the walls aswell if you are unsure ring the number on a bal tub for further advice
Any tile over over 30 by 30 use a single part flex cement based adhesive with a thick bed trowel (floor trowel)
, if the walls are crap, trowel the back of the tile as well as troweling the wall, use bal apd acrylic primer to prime the plaseter, (max weight 20 kg/per square mtr)
Direst board 32 kg /mtre2