Chaeli Sullivan on thu 27 aug 09
Johanna
You have no idea how much i appreciate this information.=3DA0 I thank you f=
ro=3D
m the=3DA0fullness of a grateful heart.
You're work commands respect and admiration for being top class and sublime=
=3D
ly magnificent.=3DA0 In plain English, - it is beautiful.
And for you to take the time to tell me exactly how you accomplish such spl=
=3D
endid results bespeaks a very generous soul, for i know you have spent year=
=3D
s of research to accomplish this.
Thank you.
Chae
--- On Thu, 8/27/09, Johanna DeMaine wrote:
From: Johanna DeMaine
Subject: Re: overglaze
To: Clayart@LSV.CERAMICS.ORG
Date: Thursday, August 27, 2009, 4:38 PM
Hi Chaeli
I use commercially available gold.=3DA0 I live in Australia and purchase my=
g=3D
old
from Fay Good Pty Ltd who trade as Interdec Australia who import the gold
from Germany.=3DA0 This is 12% liquid bright (this is a high grade) gold.=
=3DA0=3D
=3DA0=3DA0I
believe it used to be Degussa but because of the constant takeovers and
reinventions of companies they are now called Evonik.=3DA0=3DA0=3DA0It is h=
ard to=3D
keep
track as to who is still manufacturing/supplying the ceramics industry and
under what brand.
I usually apply 3-4 layers of gold but each layer must be fired before the
next layer is applied.=3DA0 The matt and shiny effects are coming from
sandblasting to etch the glaze surface before starting the initial
application.=3DA0 I choose to work this way rather than use acid to matt th=
e
surface as they (used to) do in industry.=3DA0 Nowadays much of this is
simulated by using decals made from an underlay/paste to give the same
effects.=3DA0=3DA0=3DA0
The sandblasting technique appeals to me as it lets me design and cut my ow=
=3D
n
stencils using the computer and my Roland vinyl cutter.=3DA0=3DA0=3DA0I hav=
e rece=3D
ntly
started using the same stencils on my porcelain bisque ware and
sandblasting.=3DA0 This has produce some very intricate translucent surface=
s
that are then glazed with a blue celadon.=3DA0 I enjoy pushing old techniqu=
es=3D
to
their limits and introducing modern technology into the mix.
Regards
Johanna DeMaine
http://johanna.demaine.org
http://overglaze.info
=3D0A=3D0A=3D0A
Snail Scott on fri 28 aug 09
On Aug 27, 2009, at 6:38 PM, Johanna DeMaine wrote:
> ...The matt and shiny effects are coming from
> sandblasting to etch the glaze surface before starting the initial
> application. I choose to work this way rather than use acid to matt
> the
> surface as they (used to) do in industry...
I also use metallic overglaze lusters on
sandblasted surfaces, and on glazes of
various gloss levels. The contrast between
textures opens up a whole new palette of
possibilities that doesn't look like the edge
of a souvenir ashtray. The glass-etching
pastes that they sell in hobby stores do
work, but a sandblaster is good for a wider
range of texture, and other jobs besides.
-Snail
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