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How to clean hardened grout off of slate

ChrisProctor's picture

Hey everybody,

i got myself into a tight spot while grouting my slate floor. I didn't get to the sponging in time and the grout has set up pretty bad on the face of the tile. The grout is harder than the surface of the tile, so scraping and wire brushing is not an option. Any ideas for cleaning chemicals or any way of getting the grout loose from the face of the tile?

HCl (post #215020, reply #1 of 2)

HCl

But don't use it on marble. (post #215020, reply #2 of 2)

But don't use it on marble.


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