Fonda Hancock on tue 30 jan 07
I had really hoped to make it to NCCEA this year..room reserved at the
Galt and all, But I had a fairly major scare with a recurrence of breast
cancer..failed my mommogram, failed the the ultrasound then the MRI and
finally had a boipsy (big biopsy..am i ever bruised!) It came out clear,
hallelujah!! But I missed alot of work and will be awhile recovering.
Maybe next year. I do have a question..how do you stain an imprint? I have
a bisque fired pot with a nice cedar branch imprinted, fairly deeply. I
would like for the indention to be colored more darkly than the rest of
the pot. I have seen this many, many times but I don't know how to do it.
I would greatly appreciate any advice.
Fonda in Tennessee... hoping for a snow day!
Ann Brink on tue 30 jan 07
You can sponge or brush your liquid iron oxide wash over it, then, before it
dries, sponge it off, leaving some RIO in the indentations. This can be
messy, and if you don't want oxide under your nails, wear a rubber glove.
Ann Brink in Lompoc
(mostly about pottery)
----- Original Message -----
From: "Fonda Hancock"
.
> I do have a question..how do you stain an imprint? I have
> a bisque fired pot with a nice cedar branch imprinted, fairly deeply. I
> would like for the indention to be colored more darkly than the rest of
> the pot. I have seen this many, many times but I don't know how to do it.
> I would greatly appreciate any advice.
> Fonda in Tennessee... hoping for a snow day!
>
>
Mayssan Shora Farra on tue 30 jan 07
Hello Fonda:
Sorry about your troubles but glad all is well now.
I stain all my carvings with Mason stains under clear glaze, Apply them
like a wash then wipe off as much as you want off the surface leaving more
color in the grooves but even if you don't wipe off, they will be darker
in the grooves, you can also use washes of oxides if you want a more
natural look.
I do this on white stone ware for best results, of course some glazes just
pool making the color darker in the grooves and I prefer that when I am
using brown clay.
Best wishes
Mayssan
http://www.clayvillepottery.com
Vince Pitelka on tue 30 jan 07
Fonda wrote -
"I have a bisque fired pot with a nice cedar branch imprinted, fairly
deeply. I would like for the indention to be colored more darkly than the
rest of the pot. I have seen this many, many times but I don't know how to
do it."
Fonda -
The main thing is that the biopsy came out okay and you are allright.
That's the BIG deal, in comparison to the missed work and the bruising,
although I can certainly appreciate the magnitude of any such disruption of
life. Sorry that you won't be at NCECA.
Regarding your impressed decoration, perhaps the easiest way to stain it
would be with black underglaze, brushed on, and then remove the excess with
a sponge and a light touch, so that some underglaze remains in the
impressions. You could also do the same thing with ceramic oxides. Keep in
mind that either an oxide or an underglaze will slightly stain all the clay
it comes in contact with, because some stays in the pores of the clay, but
your imprinted decoration will stand out boldly as long as some oxide or
underglaze is left in the recessed decoration.
Good luck -
- Vince
Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/
Snail Scott on wed 31 jan 07
At 07:43 PM 1/30/2007 -0500, you wrote:
>I have
>a bisque fired pot with a nice cedar branch imprinted, fairly deeply. I
>would like for the indention to be colored more darkly than the rest of
>the pot...
The most common way is to wet the pot,
then wipe it with a diluted mixture
of iron oxide and water, then scrub off
the excess with a sponge or rag. The
texture will trap the iron in the pattern.
Clean the sponge frequently to minimize
streaks.
You can also use other oxides, but most
will require a pinch of flux to bond well,
and I suggest adding a binder. Gerstley
Borate does both well, but a little frit
anda little(!) bentonite or gum will do.
You can also use almost any underglaze
or engobe for this purpose, which will
expand your color range. The nice thing
about plain iron oxide, aside from
convenience, is that if your clay
already contains some iron, it becomes
a very natural-looking effect.
The clearest result will be when the rest
of the surface is quite smooth, as the
colorant will catch in any texture, and
a tiny-but-toothy texture can trap more
color than a deep-but-smooth pattern.
-Snail
marci Boskie's Mama =^..^= on wed 31 jan 07
At 11:00 PM 1/30/2007, Automatic digest processor wrote:
>From: Fonda Hancock
>Subject: How do you stain am imprint on a bisque fired pot
>
>Maybe next year. I do have a question..how do you stain an imprint? I have
>a bisque fired pot with a nice cedar branch imprinted, fairly deeply. I
>would like for the indention to be colored more darkly than the rest of
>the pot. I have seen this many, many times but I don't know how to do it.
Hi Fonda,
Some good answers to this already but I thought I d mention yet
another option:
If the piece is already bisque fired, you can use chinapaints (
mixed with whatever... water, oil ) and painted into or rubbed into the
impressions. Then refired low anywhere from Cone018(1323F/717C) to
Cone015(1480F/800C) ...
If you want the colored surface to be matt rather than shiny , you
can mix the chinapaint with anything containing zinc oxide... (
Baby diaper rash ointment is convenient ) and fire to the lower end
of the range Cone018(1323F/717C)
Marci Blattenberger Boskie's Mama =^..^=
http://www.marciblattenberger.com
marci@ppio.com
Porcelain Painters International Online http://www.ppio.com
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d goldsobel on fri 2 feb 07
I have done this two different ways. First way is to brush on a dark matt
glaze and sponge the surface to remove the glaze everywhere except the
impression---then glaze with a compatible lighter glaze. The other way is to
use a glaze that will be dark in and on the edges of the impression. I have
used Tom Colemans Patina Green on stone ware and had great results.
Good luck
Donald
----- Original Message -----
From: "Fonda Hancock"
To:
Sent: Tuesday, January 30, 2007 4:43 PM
Subject: How do you stain am imprint on a bisque fired pot
>I had really hoped to make it to NCCEA this year..room reserved at the
> Galt and all, But I had a fairly major scare with a recurrence of breast
> cancer..failed my mommogram, failed the the ultrasound then the MRI and
> finally had a boipsy (big biopsy..am i ever bruised!) It came out clear,
> hallelujah!! But I missed alot of work and will be awhile recovering.
> Maybe next year. I do have a question..how do you stain an imprint? I have
> a bisque fired pot with a nice cedar branch imprinted, fairly deeply. I
> would like for the indention to be colored more darkly than the rest of
> the pot. I have seen this many, many times but I don't know how to do it.
> I would greatly appreciate any advice.
> Fonda in Tennessee... hoping for a snow day!
>
> ______________________________________________________________________________
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>
Ed Bull on sat 3 feb 07
Something to consider would be whether or not you wish the imprint to be
covered with glaze...
An alternative might be to brush an oxide wash into the impression.
It seems so naturally fall into the recesses of the imprint, and can be
sponged off the higher peaks. We use an iron oxide wash (sometimes mixed
with a bit of black copper oxide) to give the clay a wood-like finish.
Usually works best on iron-bearing stoneware, but can be used on white
clay.
You can also brush on some soda ash (in a water solution) to give the clay
a slightly glossy look, more like leather.
The entire piece can be treated this way or the imprint area can be waxed
off as a mask with the rest of the pot glazed.
Our handbuilding insturctor, Annette Hansen, is a master of this technique
and has also developed an array of glazes compatible with overspraying but
not overwhelming the oxides in the impressions.
Perhaps this isn't applicable to your form or clay or this piece.
If so, give it a try... if not, try it on something else anything
impressed or textured.
Cheers,
Ed Bull
www.creativeclaypottery.com
>Subject: How do you stain am imprint on a bisque fired pot
..how do you stain an imprint? I have
>> a bisque fired pot with a nice cedar branch imprinted, fairly deeply. I
>> would like for the indention to be colored more darkly than the rest of
>> the pot. I have seen this many, many times but I don't know how to do
it.
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