On Mon, 02 Nov 2015 15:19:05 -0500, Nil
wrote:

Parallel to the "How to get expanding foam off my hands" thread, how
about tile? I used some Great Stuff a few years ago to fill the void
between the bottom of a baseboard and the tile in a bathroom. Some of
it got on the tile, and even though I wiped it off, it left a yellow
stain. It's well-cured now, of course. Is there any magic chemical
solvent that might get that off? It could be something you wouldn't
want to get on your skin, if need be.

Assuming it's a smooth tile surface, just use a razor blade. Same way
you clean paint off glass. No harmful chemicals needed!

If the tile is rough, you can still use a rezor blade but it will be a
lot more work.

Next time you want to seal something like this, use clear silicone
instead. Expanding foam is NOT for finish work. A local business used it
to seal some gaps in their siding. They didn't even trim off the excess,
and it's really ugly.