(Also see Mosaics)
Mixed material mosaics (mixed media mosaics) include combinations of small glass, stone and/or metal tile. When installing mixed material mosaics, MAPEI Mosaic & Glass Tile Mortar mixed with MAPEI Polymer Additive is recommended. Always follow the mosaic tile manufacturer’s written installation instructions.
When grouting mixed material mosaics, use an unsanded grout such as MAPEI Keracolor U. Adding MAPEI Grout Maximizer to Keracolor U will help to reduce the porosity of the grout and help to keep the grout clean. If a sanded appearance is desired, a colored quartz (CQ) grout such as MAPEI Flexcolor CQ can sometimes be used successfully, but a test panel should be grouted and inspected for unacceptable scratching before grouting.
It may be necessary to pre-seal any honed or tumbled stones in the mosaic before grouting to prevent grout pigment from staining the surface of the stone. Use a stone sealer appropriate for the type of stone in the mosaic.