I will be working with very expensive tile. The edges are clean and sharp. It would be impressive if applied with NO grout lines and a blue colored adhesive. Yes, you guessed it. The tile is mostly clear in appearance. Is it mandatory to have some form of a grout line? Is it possible to tint the adhesive and if so, with what?
Thanks,
Jim T

The big box stores have a selection of tints for grout . For a larger selection go to a store or supplier that specializes in ceramic tiles.

Chuck