mel jacobson on sun 16 mar 08
as i have said, i am working on experiments with getting
copper red to change from red to purple, to blue...also some
green....on the same pot.
i have added a pix on the bottom of my clayart page.
it is getting just what i have been looking for.
all three colors.
some tips:
layer the glaze. thickness counts. i use up to five layers.
the big platter got a dose of a full ear syringe just before it
went into the kiln. that is the purple, crystal violet.
it is great to fire copper red in a maverick location of the kiln.
for me..front, lower shelves. very hot, and at times, reduction
is maverick. just what i want. and, a great use of a maverick spot.
i find that cone 11 over...is best for this color change.
i cannot stand that semi reduced, cold cone 9 liver color.
ick.
joe koons and i have been looking through old chinese and japanese
copper red glazes. they sure loved the red to blue...and of course,
in those big wood fired kilns....they got a great deal of variation.
and, that is how it happens...some accident, but knowing your kiln.
no sense wasting these experiments in cooler spots in the kiln.
just liver.
the firing i opened this morning had a multiple cool down cycle.
i down fired at 1900F for two hours, then at 1700 i fired back up
to 2000F and then let it cool a second time.
i know this is a key to great red.
i will bring a couple of these pots to nceca. you will be able to see
the tremendous variegation of the red...almost hare's fur. and of course,
that is what i have been shooting for.
mel jacobson, minnetonka, mn, usa
from minnetonka:
website http://www.visi.com/~melpots/
clayart site:
http://www.visi.com/~melpots/clayart.html
Hank Murrow on sun 16 mar 08
On Mar 16, 2008, at 11:43 AM, mel jacobson wrote:
> as i have said, i am working on experiments with getting
> copper red to change from red to purple, to blue...also some
> green....on the same pot.
>
> the firing i opened this morning had a multiple cool down cycle.
> i down fired at 1900F for two hours, then at 1700 i fired back up
> to 2000F and then let it cool a second time.
> i know this is a key to great red.
What was the atmosphere during each the down, and back up?
Cheers, Hank
jean szostek on mon 17 mar 08
Hi Mel,
im a potter from Belgium and until now my greatest attention gows to copper
red,
i read about your experiments, what is syrenge?
i joint a pix from my copper red.
thank you for the answer jean
mail : fa520033@skynet.be
site : www.szostekjean.be
----- Original Message -----
From: "mel jacobson"
To:
Sent: Sunday, March 16, 2008 7:43 PM
Subject: copper red experiments
> as i have said, i am working on experiments with getting
> copper red to change from red to purple, to blue...also some
> green....on the same pot.
>
> i have added a pix on the bottom of my clayart page.
>
> it is getting just what i have been looking for.
> all three colors.
>
> some tips:
>
> layer the glaze. thickness counts. i use up to five layers.
> the big platter got a dose of a full ear syringe just before it
> went into the kiln. that is the purple, crystal violet.
>
> it is great to fire copper red in a maverick location of the kiln.
> for me..front, lower shelves. very hot, and at times, reduction
> is maverick. just what i want. and, a great use of a maverick spot.
> i find that cone 11 over...is best for this color change.
>
> i cannot stand that semi reduced, cold cone 9 liver color.
> ick.
>
> joe koons and i have been looking through old chinese and japanese
> copper red glazes. they sure loved the red to blue...and of course,
> in those big wood fired kilns....they got a great deal of variation.
> and, that is how it happens...some accident, but knowing your kiln.
>
> no sense wasting these experiments in cooler spots in the kiln.
> just liver.
>
> the firing i opened this morning had a multiple cool down cycle.
> i down fired at 1900F for two hours, then at 1700 i fired back up
> to 2000F and then let it cool a second time.
> i know this is a key to great red.
>
> i will bring a couple of these pots to nceca. you will be able to see
> the tremendous variegation of the red...almost hare's fur. and of course,
> that is what i have been shooting for.
> mel jacobson, minnetonka, mn, usa
>
>
>
> from minnetonka:
> website http://www.visi.com/~melpots/
> clayart site:
> http://www.visi.com/~melpots/clayart.html
>
> ______________________________________________________________________________
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>
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