Why would ZUD® leave a very dull appearance on a ceramic tile floor after use?
If the tiles on the ceramic floor are soft, sensitive, or fragile, the tile will have a dull appearance, especially if the abrasive particles from ZUD® have not been fully removed. We recommend using a floor cleaner, suitable for your floor type. Use the floor cleaner according to directions and rub briskly. This will remove the remaining residue from ZUD®.