The materials suggested by Mathios Refractories SA are the mortar Mat Build and the tile adhesives Extra Stone Glue and Easy Glue. In some cases where increased adhesion, elasticity, or flexibility is required, we recommend mixing mortar and tile adhesive with plasticiser emulsion as a partial substitute for water. With regards to grouting, the use of Mat Build mortar, which is available in various colors and granulometry, is highly advised.