Before staining the tiles decide whether you want to stain the grout as well.
Can you stain glazed tile.
Soak up some stain on the sponge and wipe it onto the tile.
Wipe up the dust.
If not mask off the grout so that it does not get stain on it.
Sand the porcelain tile surface with a power sander and medium abrasion aluminum oxide sandpaper.
Sand only the tile surface not the grout lines.
For tile that has a slick surface it will need to be sanded before a tile stain or paint can be applied.
If you are creating a pattern or using multiple.
Applying masking tape along the edges of the area that you want to stain will also help you achieve clean and crisp lines.
Run the sander slowly over the surface to dull the glaze the point that it looks flat instead of shiny.
Although it is much more difficult to mask off and protect the grout the end effect can be worth the extra trouble.
Therefore sealing the tile itself would be overkill.
The top layer will not allow anything to penetrate the glaze.
Staining ceramic tile can change the ambiance of a room.
Staining ceramic tiles is a very meticulous process that yields long lasting results.
A glazed ceramic tile is not porous so the stain will simply sit on top of the surface and become a big mess.
Tile that has been treated or sealed will also have a hard time accepting a stain or paint.
Apply the stain to the tiles using a tile sponge cut down into a manageable sized piece.
If you have a matte finish without glaze it may be to your advantage to seal the tile in order to stains.