(Also see Substrates)
For tiling over existing porcelain tile, first clean the existing tile and prime it by using MAPEI’s ECO Prim Grip. New ceramic or porcelain tile can then be installed by using MAPEI’s Ultraflex 1 or MAPEI’s Adesilex P10 Mosaic & Glass Tile (for tiles up to 15″) or by using MAPEI’s Ultraflex LFT or MAPEI’s Keraflex Plus (for any size of tile).
Natural stone tile up to 15″ in length and width can be installed by using a two-part mortar such as MAPEI’s Adesilex P10 Mosaic & Glass Tile mixed with MAPEI’s Polymer Additive.