Milton Markey on tue 6 feb 01
Hi Everybody!
I wonder if some suggestions could be provided, to prevent Raku from fading.
I already saw using a spray preservative.
Does location of the piece, such as out of direct sunlight, really affect the
fade rate of un-preserved raku works? If the copper in a glaze is oxydizing,
causing the gloss to fade, it seems a dry, cool location would also be
conducive to preserving the finish of a raku piece.
What has worked for you fellow raku lovers, to prevent fade in
copper-stimulated raku wares?
Best wishes!
Milton NakedClay@AOL.COM
Warm day in the Mojave. Two old cottonwood trees fell--already dead--in last
night's windstorm. I'm treating the handsaw muscles kindly tonight.
Marcia Selsor on wed 7 feb 01
Just for the record, I did not post the "Hi, everybody question"
Marcia
CINDI ANDERSON wrote:
>
> I have been told to spray Raku with sodium silicate to keep it from fading. Has
> anybody tried that?
> Cindi
>
> Marcia Selsor wrote:
>
> > > Hi Everybody!
> > >
> > > I wonder if some suggestions could be provided, to prevent Raku from fading.
> > > I already saw using a spray preservative.
> > >
> > > Does location of the piece, such as out of direct sunlight, really affect the
> > > fade rate of un-preserved raku works? If the copper in a glaze is oxydizing,
> > > causing the gloss to fade, it seems a dry, cool location would also be
> > > conducive to preserving the finish of a raku piece.
> > >
> > > What has worked for you fellow raku lovers, to prevent fade in
> > > copper-stimulated raku wares?
> > >
> > > Best wishes!
> > >
> > > Milton NakedClay@AOL.COM
>
> ______________________________________________________________________________
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--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/Tuscany2001.html
Karen Sullivan on wed 7 feb 01
I use Futura Acrylic Floor Wax to seal the raku...
Dilute the liquid 3 to 1 for a matt non-shiney surface.
Repeated coats over time are required.
bamboo karen
who never does raku
Marcia Selsor on wed 7 feb 01
Hi, Milton,
I had a test for over 8 years in my back yard, using a painted on
acrylic medium. It was on a copper luster glaze. Half was treated. The
sun light turned the copper green over the years. Where is was painted
with acrylic (Liquitex) medium it remained copper luster.
My horse plaques are not functional. I like the flat black bare clay
contrasting to the copper luster. I don't have any ethical problems
treating the color this way. It actually preserves what the buyers have
paid for.
Marcia
Milton Markey wrote:
>
> Hi Everybody!
>
> I wonder if some suggestions could be provided, to prevent Raku from fading.
> I already saw using a spray preservative.
>
> Does location of the piece, such as out of direct sunlight, really affect the
> fade rate of un-preserved raku works? If the copper in a glaze is oxydizing,
> causing the gloss to fade, it seems a dry, cool location would also be
> conducive to preserving the finish of a raku piece.
>
> What has worked for you fellow raku lovers, to prevent fade in
> copper-stimulated raku wares?
>
> Best wishes!
>
> Milton NakedClay@AOL.COM
>
> Warm day in the Mojave. Two old cottonwood trees fell--already dead--in last
> night's windstorm. I'm treating the handsaw muscles kindly tonight.
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> 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 melpots@pclink.com.
--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/Tuscany2001.html
CINDI ANDERSON on wed 7 feb 01
I have been told to spray Raku with sodium silicate to keep it from fading. Has
anybody tried that?
Cindi
Marcia Selsor wrote:
> > Hi Everybody!
> >
> > I wonder if some suggestions could be provided, to prevent Raku from fading.
> > I already saw using a spray preservative.
> >
> > Does location of the piece, such as out of direct sunlight, really affect the
> > fade rate of un-preserved raku works? If the copper in a glaze is oxydizing,
> > causing the gloss to fade, it seems a dry, cool location would also be
> > conducive to preserving the finish of a raku piece.
> >
> > What has worked for you fellow raku lovers, to prevent fade in
> > copper-stimulated raku wares?
> >
> > Best wishes!
> >
> > Milton NakedClay@AOL.COM
Coolpots@AOL.COM on thu 8 feb 01
Milton,
I was told that direct sunlight causes the copper on a raku piece to fade. I
have a few of my severely cracked pieces sitting around my house and notice
some of the color is fading toward tourqoise, still very pretty. For over a
year now I have been spraying my raku pieces that have copper and lusters
with acrylic spray to preserve them. I also tell my customers to keep out of
direct sunlight. I hope this is helping the colors to stay as they are. Time
will tell.
Vicki in Cool, CA
Gary Elfring on thu 8 feb 01
At 12:00 AM 2/8/01 -0500, you wrote:
>I wonder if some suggestions could be provided, to prevent Raku from fading.
>I already saw using a spray preservative.
>
>Does location of the piece, such as out of direct sunlight, really affect the
>fade rate of un-preserved raku works? If the copper in a glaze is oxydizing,
>causing the gloss to fade, it seems a dry, cool location would also be
>conducive to preserving the finish of a raku piece.
>
>What has worked for you fellow raku lovers, to prevent fade in
>copper-stimulated raku wares?
The fading is due to oxidation of the metals in the glaze. Whether the glaze
is poorly made or not doesn't really matter. What matters is preventing the
metals in the glaze from re-oxidizing. That means you have to keep the oxygen
(air) away from the pot.
The only way I have found to do this is to use a clear lacquer spray on the
piece.
I spray with a real lacquer- nitrocellulose and horrible solvents -
outside. I did
a test with two similar bowls- one sprayed and one not. The sprayed bowl is
still
perfect, the other is faded and ugly. The lacquer coating can tolerate a
damp cloth
for washing (I have actually quickly washed and dried snack bowls protected
this way).
Elfring Fonts, Inc Bar Codes, MICR, and decorative fonts for Windows
http://www.elfring.com
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