Marcia Selsor on mon 5 feb 01
You could refire it. Then if you like the color you can fix it with
fixatif or an acrylic spray.
-if you are not using it for food. You could alos take a propane torch
to it and play with the color that way.
Marcia in Montana
Duane Archer wrote:
> I have a piece of Raku that I love but it has that ugly faded look
> now. Is there any method known to restore its original beauty? You'all
> have answered the two questions that I posed in the past and I thank you for
> the great response---now I am hoping you can help on this one. Thank you
> in advance. Tulsa Potter
> Duane L. Archer
> Send postings to email@example.com
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
> Moderator of the list is Mel Jacobson who may be reached at firstname.lastname@example.org.
Duane Archer on mon 5 feb 01
I have a piece of Raku that I love but it has that ugly faded look
now. Is there any method known to restore its original beauty? You'all
have answered the two questions that I posed in the past and I thank you for
the great response---now I am hoping you can help on this one. Thank you
in advance. Tulsa Potter
Duane L. Archer
vince pitelka on tue 6 feb 01
> > I have a piece of Raku that I love but it has that ugly faded
> > now. Is there any method known to restore its original beauty?
> > have answered the two questions that I posed in the past and I thank you
> > the great response---now I am hoping you can help on this one. Thank
> > in advance. Tulsa Potter
I am assuming that this is your work? If it is your work, you could always
refire it. If not, it would be unethical to do that. You could always
contact the artist and see if he/she would be willing to refire it. If
he/she is not, I bet he/she would at least be more than willing to sell you
another one! This is the problem with raku copper glazes. The copper is
reduced to the pure metal on the surface, and of course we all know what
happens to unprotected copper over time - it fades and turns green. So you
can expect this to happen to any copper mat or copper penny glaze, unless it
is sprayed with varnish or wax, which in my mind ruins the surface quality.
Think of it as a performance piece, and when the performance is over, you
leave (or in this case the piece leaves).
Best wishes -
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - email@example.com
Work - firstname.lastname@example.org
615/597-6801 ext. 111, fax 615/597-6803
Dannon Rhudy on tue 6 feb 01
At 08:13 PM 02/05/2001 EST, you wrote:
> I have a piece of Raku that .... has that ugly faded look
>now. Is there any method known to restore its original beauty? .......
Assuming that you speak of a copper glaze:
One could concievably re-fire the piece, and perhaps restore the
glitz, BUT - even if the re-fire were successful, it would not return
the work to it's original state. It would be different, because copper
flashing roams around the surface depending upon a number of
things, including reduction inside and outside the kiln. Re-firing
is tricky - pieces are more prone to break on a second try.
The piece looks faded because the copper has oxidized in the atmosphere.
Like a penny, turning dull. The copper layer is very thin in copper
matt surfaces, and often on copper glazes, too. There are those who
use such unstable glazes and then coat with a material to retard
oxidation. And Tom Buck has some reformulated glazes on the
digitalfire site that are more stable. For your current piece - best
to make another, probably.
Cantello Studios on tue 6 feb 01
If this is a gloss surface you could try cleaning it with anything acidic.
will work somewhat just rub it on the surface of the pot like you were
a silver platter. I know this sounds odd but it will work to a point. If its
The only thing you can do is refire. All copper raku glazes will oxidize out
some quicker then others. The only way to slow this oxidation down is to
the pot out of sunlight and in some kind of glass case or shaded bookshelf.
I heard a sad story that fits in here. I heard it 3rd party so don't quote
me on it but it is interesting if true. One of
Paul Soldnards clients had been collecting his raku work back in the early
I believe and after some odd years had invested a lot of money so I heard,
this client took Paul to court and sued him, because all the pots had
Most likely turning green, brown or black. I never heard how this all this
ended up but I'm
sure it could happen.
Chris at Cantello Studios were the only copper raku I do is on
my birdhouse roofs and you can be sure that I tell my customers that all
raku will change color in time.
Jim V Brooks on wed 7 feb 01
I have been told.. i have not tried this.... that you can use valve grinding
compound ( the type used to grind the valves in your car motor.) and remove
the thin outer layer of re-oxidized glaze. This should return it to the
original colors... NOTE: I have not tried this........ Jim in Denton