Brunnera table - feedback needed
I have finally finished the main part of the tabletop, but may have a problem. The glass is glued to mesh with Weldbond, then attached to Wediboard with thinset. The problem, I think, is that I spread a verrry thin layer of thinset, peanut butter consistency, on the Wedi, then pressed the glass-on-mesh into it. First I pressed with my hands, then I placed a board over it and tapped with a rubber mallet, but the thinset never oozed up past the mesh to 'grab' it. I let it dry overnight, and for the most part, it seems attached. But, some of the glass pieces seem to only be held in place with the glue (see photo).
I know I should've used thinset as the adhesive, but I thought I might be able to use the table outside if the thinset oozed up between each glass piece. I was planning to purchase two colors of grout, light and dark green, that I would seal with TileLab.
My question is, how does this mesh process work? Does it grab the mesh only, so that really you are relying on the glue to hold the tesserae in place? I read somewhere that the grout doesn't really hold pieces in place. Since I used Weldbond, will my pieces come loose if it rehydrates outside since some don't have any contact with the thinset? Should I have made the thinset thinner or doesn't it really ooze up anyway?
All experienced mesh-users, please reply! Hope this makes sense, I kinda went into this without thinking through all the details (too excited to get to work) Thanks for reading,