Don t use just any sponge especially one from the kitchen.
Grout tile how long after attach to wall.
Sweep a damp not wet sponge diagonally across the tile.
Follow the package instructions for the tile mastic or thinset used for adhering the tiles to the wall.
Generally 24 hours will do for this and some setup more quickly.
Time before grouting drying time varies depending on room temperature humidity and how much moisture there is in the mortar when it s applied.
Grout it clean up and enjoy.
Mortar must set at least 24 to 48 hours before grouting.
Apply mortar when the ambient air temperature is between 50 and 100 degrees fahrenheit.
You may notice that the edges of the thinset or the thinset showing through the grout lines looks dry.
My advice would be leave it overnight as you will have to remove the spacers to actually grout and depending on how tight you have wedged the tiles to the spacers you may end up pulling off the tiles.
It s only a small job and will only take you 20 30 minutes to grout it so for what its worth i would suggest waiting 24 hours for it to fully dry.
Rinse your sponge often and repeat until you re left with a thin haze.
Choose a hydrophilic water loving sponge.
24 to 48 hours you should wait at least 24 hours before grouting the tiles.
Grouting is the final step of installing ceramic wall tile after the tile adhesive has fully cured.
The tiles must be set before you attempt to grout them or they will move and cause you headaches.