Work in a small area at a time roughly a 3 x 3 foot section.
How to grout tile wall corners.
In addition to silicone the tcna recommends urethane or multi polymer caulks.
Use tile plastic corner trims for a neat look caulk the corners rather than applying grout leave enough room for til expansion.
How to grout tile.
Pour a quart to half gallon of grout on the tiles.
Mix the grout by hand.
In those extremely rare cases where cracks develop in the grout in a corner i thoroughly scrape out the old grout and completely clean the joint.
Wait a few minutes while the grout begins to harden.
Subtract 1 4 inch from the measurement you.
Grouting tips and techniques prep work.
Start with clean joints.
Roll the bucket frequently.
Wipe tile with a damp sponge wait a few minutes while the tile grout begins to harden.
Measure from the edge of the last tile in a course to the corner.
Then i run a bead of caulk in the corner.
Vacuum the grout lines then scrape any protruding grout using a stiff putty knife.
Hang all the full tiles over both walls leading to the corner starting each wall at the middle of the bottom.
Spread the material in sweeping arcs pressing it into the joints to fill them completely.
To minimize the chances for mold i use nothing except 100 silicone caulk.
Wipe the tiles in a circular motion with a damp sponge taking care not to drag out any of the grout from the corners of the tiles.
Apply mortar to.