Be extra careful with this step as you can scratch or chip.
How to fix ceramic tile grout.
1 clean the area where the grout is broken with a 1 to 1 vinegar and water mixture.
Once it s semi dry wipe your tiles using a sponge dampened with tap water.
2 remove damaged grout and debris with a grout saw.
If the width is 1 8 of an inch or smaller use an unsanded grout.
Clean the surface of the surrounding tiles completely with a soft cloth.
Be careful to avoid damaging the tiles.
Step 3 clean the seams.
Use a grout saw to remove the loose or damaged grout in between the tiles.
Match the caulk at most tile specialty shops you can get or order sanded caulk most floor grouts are sanded that will closely match your existing grout color.
Mix one part white vinegar and one part water in a bowl or bucket.
The color of the grout will initially look a shade darker than the old grout.
Just allow the area to dry for 2 to 3 more days and its true color will show to match the color of the old grout perfectly.
If the cloth doesn t remove the haze mix 1 part white vinegar with 1 part water.
Gently run the grout saw back and forth along the grout seams.
When a hazy layer appears on the tiles you can buff them clean using a dry rag or microfiber cloth.
Use a dry rag to polish the tiles.
This fix is only practical for interior tile floors and when the gaps between the tiles are 1 4 in.
Clean the damaged grout with white vinegar and water.
Wet an old rag and clean the surface of the tile for more grout smudges.
Step 2 remove loose and damaged grout.
Then dip a clean toothbrush in the mixture and scrub the damaged grout until all the dirt and grime comes off.
Never use sanded grout with metal glass or marble tiles.
Measure the space between the tiles.
If the space is larger than 1 8 of an inch use a sanded grout.
That way you can see the exact color of the grout and buy new grout that matches it.
Choose the correct type of grout based on the width of your tile joints and where the repair is being done.
Scrape any excess grout from the tiles using the edge of the grout float.