(Also see Substrates)
In order to tile over existing porcelain tile, the tile should be cleaned. New ceramic or porcelain tile can then be installed using MAPEI’s Large-Format Floor & Wall Tile Mortar, MAPEI’s Large Tile & Stone Mortar, or a two-part mortar such as MAPEI’s Large-Format Floor Tile Mortar mixed with MAPEI’s Polymer Additive, or MAPEI’s Uncoupling Membrane Mortar mixed with MAPEI’s Polymer Additive.
Natural stone tile up to 15″ in length and width can be installed using a two-part mortar such as MAPEI’s Adesilex P10 Mosaic & Glass Tile mixed with MAPEI’s Polymer Additive.