How to get expanding foam off tile??

[Nil]

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.

[RealP...@none.com]

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.

[Oren]

On Mon, 02 Nov 2015 15:19:05 -0500, Nil
<redn...@REMOVETHIScomcast.net> wrote:

Single edge razor blade scraper... from HD or Lowes

<http://direct2trade.co.nz/stanley-razor-blade-scraper-28-500>

"Removes paint, glue, putty or adhesives from glass, tile,
walls, floors or other smooth surfaces.

Be very, very cautious on glass windows, though.

[Frank]

I just recommended trying vinegar for cleaning hands but you might use
diluted muriatic (hydrochloric) acid.

Years ago I etched my basement floor with dilute muriatic acid and after
a while the sponge disintegrated.

It can take awhile to hydrolyze the polymer so you can wash it off.

[cl...@snyder.on.ca]

On Mon, 02 Nov 2015 15:19:05 -0500, Nil
<redn...@REMOVETHIScomcast.net> wrote:

A razor blade if it is a glazed tile, good luck if it is not. Might
try a bit of MEK, but I have my doubts.

[Oren]

Sulfamic acid granules, tile and grout cleaner is a mild form of HCI
acid when diluted well with water. Follow the instruction on mixing.

Not a chemist but I have used it before. With good results.

[Nil]

On 02 Nov 2015, RealP...@none.com wrote in alt.home.repair:

> 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.

The tile has kind of a pebbly texture, it's not glass-like. I've been
trying to ignore it for a few years, but as I recall, I tried attacking
it with a razor blade but didn't get very far. Have been hoping for a
magic elixir.

> Next time you want to seal something like this, use clear silicone
> instead. Expanding foam is NOT for finish work.

I have learned that lesson. In this case, the void was actually mainly
at the edge of the subfloor and larger than would have been appropriate
for silicon caulk. I probably should have just left it alone. What I
didn't count on was that foam stuff being so damn sticky.

[Nil]

That sounds like a possibility. I'll check it out.

[Nil]

On 02 Nov 2015, cl...@snyder.on.ca wrote in alt.home.repair:

> A razor blade if it is a glazed tile, good luck if it is not.
> Might try a bit of MEK, but I have my doubts.

"MEC"?? Are you referring to "Butanone, also known as methyl ethyl
ketone (MEK)"? Where could I get that?

[Oren]

The stuff I used a decade ago was granules you mixed with water
(instructions). Made by "Tile Labs" (Sulfamic acid - mild acid). I
see now they have a spray bottle container that is non-acidic, so I
cannot comment on that product. Check the MSDS on it.

Lighter fluid (NAPHTHA) removes labels, tar, grease and oil. Maybe
that will work, in conjunction with a single edge razor blade scraper.
YMMV

[Stormin Mormon]

Might want to check on that. Sulf and chlor are not
the same chemical.

-
.
Christopher A. Young
learn more about Jesus
. www.lds.org
.
.

[hrho...@att.net]

Wouldn't a wire brush or wire wheel in an electric drill run at low speed also work???