FAQs

Ready-to-use tile adhesives such as MAPEI's Type 1 and Premium Mortar for tile and stone require a porous substrate to cure properly. They should not be installed over a waterproofing membrane.

It is best to seal all porous stone before grouting the floor, and again after the grout has fully cured.

Regular cleaning is recommended, but the frequency depends on the usage in the area. Bleach should only be used when absolutely necessary and should never be used for routine maintenance of stone, tile and grout. For most installations and applications, the use of an appropriate cleaner, such as MAPEI's UltraCare Concentrated Tile & Grout Cleaner for floors, or UltraCare Everyday Stone, Tile & Grout Cleaner; UltraCare Everyday Stone Clean & Polish; and UltraCare Everyday Stone & Grout Cleaner & Resealer for countertops and backsplashes, is recommended routine maintenance.

MAPEI's Keracolor U grout is unsanded. So, it's a great choice for grouting most installations of glossy wall tile. Other good options are Ultracolor Plus FA grout and Ultracolor Plus Max grout. When grouting installations of antique or handmade wall tile, it is recommended to build a mockup (sample board) or, at the very least, test these products in an inconspicuous area before grouting.

Always test first! Your grout should withstand the occasional use of diluted bleach. One cup of bleach, mixed with one gallon of clean water, is usually sufficient for disinfecting. Regular use can discolor and weaken grout over time. Bleach should only be used when absolutely necessary and should never be used for routine maintenance of stone, tile and grout. For most installations and applications, the use of an appropriate cleaner, such as MAPEI's UltraCare Concentrated Tile & Grout Cleaner for floors, or UltraCare Everyday Stone, Tile & Grout Cleaner; UltraCare Everyday Stone Clean & Polish; and UltraCare Everyday Stone & Grout Cleaner & Resealer for countertops and backsplashes, is recommended routine maintenance.