Thanks again MissTiler, very useful having your input. Got the Adhesive now and should get the mosaics at the weekend. Plan on doing all the main field tiiles and leaving my strip until last. They will all be done with the same Keralex maxi, so should get the hand of mixing and using it by the time it goes to the mosaic. Might get a mosaic mesh and see what its like, before deciding on using it. Main issue I had was the aluminum profile is U shaped and hollow with only 2 edges that bond. I'm wondering if I should attempt to put mesh backer on (it will reduce contact area, or just press the mosaic into the adhesive. Saw a video where a tiler used a dita strip and then coated the entire back with adhesive. When it set, he just used it as a regular, stiff, ceramic tile. Doing the same with mesh would allow some adhesive through into the hollow areas. I could do that whilst adhesive was still a bit wet and onto a wall on adhesive. Only problem may be some adhesive oozing through.
How you use the keraflex maxi when doing strips? Do you let it half set first before applying? or just straight on? Many users on this forum use rapid setting and leave it to go semi dry. That seems the way without mesh (called dogtooth I think), but they are pros and have done it a few times. Still, interesting stuff all this!