My general rule of thumb with my outdoor sculpture, if it does not come off
easily, then leave it for the conservators. Most of us are not qualified
for such activities, and often make the problems worse.

The only other solvents I might try are denatured alcohol and/or tolune,
but take care. Tolune is highly toxic, and can also drive the stain farther
into the concrete. If you choose to risk it, use gloves with all the
solvents, and use cuetips or some other tool to lift the stain off(assuming
toluene has any effect), rather than pouring/brushing on the solvent.

Good luck.

Mark Janzen
Registrar/Collections Manager
Edwin A. Ulrich Museum of Art
Martin H. Bush Outdoor Sculpture Collection
Wichita State University
(316)978-5850



             "Kimberly Kenney,
             Curator"
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Hello all,

We have had some vandalism on our site.  Fortunately
it was not on the McKinley National Memorial itself,
but rather on a small gazebo behind it.

The gazebo is made of concrete, and the writing was
done in thick, black permanent marker.

Our maintenance staff has requested that I ask this
group for a possible cleaning solution.  They have
already tried acetone and it didn't budge at all.

Thank you for your suggestions!

Kim Kenney


=====
Kimberly A. Kenney, Curator
Wm. McKinley Presidential Library & Museum
800 McKinley Monument Dr. NW
Canton OH 44708 * 330-455-7043
Visit the Ohio Memory Project at http://www.ohiomemory.org
"Let us ever remember that our interests are in concord, not conflict; and
that our real eminence rests in the victories of peace, not those of war."
--25th United States President William McKinley



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