Use a hard edged rubber grout float and hold it at a 45 degree angle.
How to grout ceramic tile corners.
In addition to silicone the tcna recommends urethane or multi polymer caulks.
Then i run a bead of caulk in the corner.
2 hours one person.
Pour a quart to half gallon of grout on the tiles.
Press the grout into the lines between the tiles while scraping it off the surface then wipe up the excess with a damp sponge.
Mix the grout mix the grout by pouring the water in first and then add the powder and stir with a margin trowel.
First of all you have to prepare the wall before installing the ceramic tiles.
Sweep diagonally across the tile forcing the grout into the joints.
On vertical surfaces apply grout upward.
Use this method for both pre mixed and powdered grout.
Learn my proven system and stop messing around with grout.
Having a great system for grouting a job is essential to success.
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.
Spread the material in sweeping arcs pressing it into the joints to fill them completely.
The thickness of your joint will determine if you can use sanded or unsanded grout.
Apply the grout diagonally across the tile joints to squish the grout into the joints photo 5.
Don t grout the corner line.
Let the tile edge show slightly so the caulk has something to grab.
How to tile inside corners using a plastic trim.
To minimize the chances for mold i use nothing except 100 silicone caulk.
Leave enough room for til expansion.
If the wall is made of bricks you should make sure the cement render is uniform and remove the irregularities by using a large scrapper.
Use tile plastic corner trims for a neat look.
Caulk the corners rather than applying grout.
Do not cover the entire float with grout.
Work in a small area at a time roughly a 3 x 3 foot section.
Next apply the grout to the tile working from the bottom of the section upwards and holding the float at an angle of about 45 degrees.
Begin taping both sides of every inside corner with clean lines as neat as possible.
Use whichever side or corner of the float is necessary to fully compress grout into the entire joint.
Once your new shower tile is grouted and buffed and the corners are clean and dry get a sharp utility knife being very careful or scissors and painter s tape.