Unglazed tiles have no glazing on the surface. The color of the bisque goes all the way through the tile from top to bottom. Quarry tiles are unglazed and used in both commercial and residential areas. Depending on the type of unglazed tile you may need a special sealer.
Coating a tile with glaze adds both color and a hard protective surface to the tile. A glaze can also give the tile a satin, textured or glossy finish and they're easy to maintain.
Glazing allows the ceramic tile to be offered in unlimited colors and designs.
Glazed ceramic tile is generally used in areas, such as bathrooms, kitchens, walls, floor. Some of the features of glazed ceramic tile are:
Fade resistance to direct sunlight
Easy to Clean