Scraping hardened grout from a tile keep the angle of the scraper as acute as possible.
How to remove dried grout from wall tiles.
Be sure to read the label and match the grout release agent to the material you are working with.
The old grout might be moldy and beyond cleanable.
Applying grout to ceramic tiles can be a messy job and removing it from the surface of tiles can be tricky.
Armed with this handy tool you can remove 15 square feet of grout on 4 by 4 inch tile in about one hour.
In some cases the effort of removing the hardened grout will be immense and very time consuming.
Fortunately there are a few methods that can help to remove even the most stubborn dried on grout from tiles without damaging the finish of the tile.
They do a superb job of making grouting jobs virtually trouble free.
Wet grout is easy to wipe away with a damp sponge but because it is comprised mainly of cement it can be very difficult to fully remove dried grout from porcelain tile.
Grout is made of cement and dries quickly.
You then grout and as you remove the grout and film the grout release agent comes off at the same time.
Rinse the tile with clean water to remove the sugar solution.
In these cases you might consider simply replacing the tile as this might well be quicker or perhaps your efforts to remove the dried grout have damaged.
There are a few good reasons why you might want or need to remove old tile grout.
If some grout remains repeat scrubbing it with the sugar water.