Sealing
When porcelain is first made, it is not absorbent, but the polishing process for making the unglazed surface shiny cuts into the surface, making it more porous and prone to absorbing stains, in the same way as natural stone tiles do. Unless they have a suitable, long-lasting treatment put on by the manufacturer, such as nanotech treatment, polished porcelain tiles will need sealing. Porcelain sealers are either water-based, which is cheaper, but does not last as long, or solvent-based.
Read more about this topic: Porcelain Tile
Famous quotes containing the word sealing:
““The time has come,” the Walrus said,
“To talk of many things:
Of shoes—and ships—and sealing wax—
Of cabbages—and kings—
And why the sea is boiling hot—
And whether pigs have wings.””
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)
“Woe to that nation whose literature is cut short by the intrusion of force. This is not merely interference with freedom of the press but the sealing up of a nation’s heart, the excision of its memory.”
—Alexander Solzhenitsyn (b. 1918)