I'm tiling my shower/Bath surround, I will be using ceramic 3x6 on bottom rows then 1x3 Glass tile on 1 run around shower, then 6x6 ceramic on 45 degree surrounding 4.5x4.5 alternating ceramic and glass tile. (can post pic if necessary)
I see a lot of information about ceramic tile and a lot about glass installations, however nothing with glass & Ceramic configuration like my wonderful wife would like... Additionally I would like to avoid the more difficult & costly glass tile install on the whole surround...

First off-
Which thinset should I use? The store where I purchased everything said to use Ultraflex1 however in the directions it says no to Glass tile on shower surounds. (same with ultraflex2) ultraflex3 is the only one that simply doesn't mention glass tile.

The glass tile mfg says to use liquid latex fortified thinset.

Does this mean I don't use H20 and buy liquid latex for mixing?

The glass tile MFG recommends skim coating then back buttering the glass tile. Is this critical considering I have mix matched ceramic & glass tiles?

Any help would be appreciated.

 

Follow the glass manufacturers instructions. Yes, use dryset mortar (unmodified) with the same manufacturers additive. The glass manufacturer may have suggestions as to which thinsets can be used if you go to their website.

You could use a bagged modified thinset to set the ceramic tile, and then switch to the dryset and additive mix for the glass and ceramic combo areas. You could use the dryset with additive for the whole job as well, just cost more that way.