MAPEI's Ultracontact Technology is the most innovative change to tile & stone installation since the trowel! The MAPEI labs have taken the guess-work out of wondering if your tile or stone has enough mortar transfer to hold it in place and absorb traffic loads. The old method involved beating the tile into the mortar with a beating block and a rubber mallet — even back-buttering. The Ultracontact System of products eliminates these steps, providing enhanced productivity and a better installation.