The
surface of most ceramic and porcelain tile does not need to
be sealed, although some require a light application of penetrating
sealer to fill the micro pores on the surface of the tile.
However, the grout joint between the tiles is usually very
porous and generally made of a cement-based material. Therefore,
grout joints typically will need to be sealed and maintained
properly to prevent stains and discoloration.
Grout Sealing
is recommended every 1-3 years for fulltime showers. |