To fix the crack you have a couple of options.
Fix cracked grout bathroom tiles.
If the width is 1 8 of an inch or smaller use an unsanded grout.
Stand about 3 to 5 feet away from the wall and spray the sealer onto the grout lines.
The proper way to repair cracked and missing grout is to remove all of the grout from in between all of the tiles.
Repairing wide cracks in grout if you have wider cracks in the grout or missing grout then it s time to consider removing the old grout and installing new grout between the tiles.
Never use sanded grout with metal glass or marble tiles.
You can repair the crack with tile filler and then paint over the filler with a color that matches the rest of the tile.
You ll also want to make sure your shower wall is also dry.
The reason all the grout needs to be removed is that it is better to have it all replaced at the same time.
2 remove damaged grout and debris with a grout saw.
When all of the grout is removed from around the broken tile cover it with a drop cloth.
Once you ve determined the type of grout you ll be using follow these steps according to lowe s.
Let the sealer dry for about 30 minutes and then reapply it.
Make sure you have cleaned the tile and the grout you are about to seal.
Links to grout tools.
This is a rather time consuming and tedious process.
Leah demonstrates how to remove damaged grout with a grout saw and then re grout the damaged areas.
Project step by step 4 remove the old grout.
You can replace the entire tile.
Measure the space between the tiles.
At most tile specialty shops you can get or order sanded caulk most floor grouts are sanded that.
Cracked bathroom tiles can be caused by either an instability in the surface under the tile or in rare cases the low quality of the tile itself.
This is a substance that matches the color of grout exactly and comes in a normal caulking tube.
Place a dust sheet around the work area.
You can use a simple grout removal kit or i prefer using a dremel 568 grout removal kit which attaches to my dremel tool or the rockwell sonicrafter.
1 clean the area where the grout is broken with a 1 to 1 vinegar and water mixture.
If the space is larger than 1 8 of an inch use a sanded grout.
Remove all the loose and cracked grout with a grout saw or dremel tool and completely vacuum out.
Using a hammer firmly tap the cracked tile to.
You can simply squeeze the tube in a caulk gun and apply it to any cracks that you may have.