Premium Mortar
Premium Mortar is a premixed no-mess alternative to traditional thin-set mortars that require water and mixing. It is nonflammable and ready to use.
AVAILABLE AT SELECT RETAIL LOCATIONS ONLY
FAQs
Can I apply Premium Mortar over a waterproofing membrane?
Ready-to-use tile adhesives such as MAPEI's Premium Mortar for tile and stone require a porous substrate to cure properly. They should not be installed over a waterproofing membrane.
Can Premium Mortar be used under cement board?
MAPEI's Premium Mortar for tile and stone should not be used under cement board. Refer to the cement board manufacturer’s written installation instructions for cement-based mortar recommendations. If the cement board manufacturer recommends a non-modified mortar, MAPEI recommends Uncoupling Membrane Mortar.
Is there a limit for the tile size?
Tile cannot exceed 20" on any side when using MAPEI's Premium Mortar for tile and stone.
What is the maximum trowel size that can be used?
A 1/4" x 3/8" x 1/4" square-notch trowel is the maximum trowel size.
Can I use Premium Mortar with a radiant-heat flooring system?
MAPEI's Premium Mortar for tile and stone should not be used with radiant-heat flooring systems. Polymer-modified, cement-based mortars such as MAPEI's Large Tile & Stone Mortar are generally recommended for installing tile over radiant-heat systems. Refer to the written instructions of the radiant-heat manufacturer for recommendations of cement-based mortars.
Can Premium Mortar be used outside?
MAPEI's Premium Mortar for tile and stone should not be used for exterior installations. Polymer-modified, cement-based mortars generally recommended for installing tile outside include MAPEI's Large Tile & Stone Mortar, and MAPEI's Uncoupling Membrane Mortar mixed with MAPEI's Polymer Additive.
Can Premium Mortar be used in a pool?
MAPEI's Premium Mortar should not be used in submerged applications such as swimming pools. Use MAPEI's Mosaic & Glass Tile Mortar mixed with MAPEI's Polymer Additive.
Can Premium Mortar also be used as a grout?
MAPEI's Premium Mortar for tile and stone should not be used as grout. For convenience, MAPEI offers MAPEI Flexcolor® CQ, which is a ready-to-use (premixed) grout.