Only TotalFlex® XMS Tile Adhesive is designed for the most challenging wall applications on earth. From exterior building facades to submerged use in pools and clear glass installations, it offers unmatched versatility paired with a time-saving, one-sided application. So work smarter instead of harder with a tile adhesive that sticks where no others can it offers unmatched versatility paired with a time-saving, one-sided application. So work smarter instead of harder with a tile adhesive that sticks where no others can.