There are essentially only three things that can be done to remove the hardened grout from your wall or floor tiles.
Best way to clean dried grout off tiles.
I ve tried scraping the dried.
Scrub with any coarse salt even epsom salts.
Scrape scratch and rub the grout off the tiles dissolve the grout without affecting the tile replace the tile s if you can t get the hardened grout off.
Wet the grout and surrounding tiles with a damp sponge.
It should be easy to clean up tile haze with basic gentle astringents such as a drop of mild.
This will act as a lubricant and will prevent scratches on the tiled.
Remove grout haze with water and cheesecloth.
Scrape the large clumps or layers of grout with a small piece of hardwood such as oak that is about 1 4 to 3 8 inch.
If the damp cloth fails to lift the grout haze break out the rubber grout float.
Use plenty of water when scrubbing.
Work at the grout with light to medium.
Dip a nylon scouring pad into the water and scrub the grout residue.
Water and wood method pour some clean water over the tile surface.
If grout is adhered to a baseboard or vertically applied tile use a wet sponge.
Allow the salt to dry overnight then rinse it off in the morning.
Sprinkle it with a coarse salt then scrub the salt into the grout with a toothbrush or nylon scrubbing brush.
How to remove dried on grout haze from tile materials for grout dust removal.
If the sparkling tile has turned dull in a matter of days the good news is that it is.
Rinse out the scouring pad in the bucket of water frequently while scrubbing the tile.
Protect your hands with rubber gloves and dip your cheesecloth.
Additional ways to remove dried grout from porcelain using wire wool.
When a wood block or stick and a nylon scouring pad don t seem like enough to remove the dried on.
I was applying grout to ceramic subway tile and ended up having to leave the job before i could sponge clean the excess grout.
How to remove grout haze method 1.