Jeff Tsai on fri 17 may 02
Melinda wrote:
"It won't work out if they are duncan concepts...they self glaze and must
always be put on bisque...and then glaze over top...I learned this the hard
way..had a student who bought some and used them here....I told her I didn't
see what difference it would make to put the colorants on
greenware...wrong...............for Concepts, it matters....I usej Amaco
velvets when I get on a painting kick...Melinda"
THis is a very good point!!!!!!
I'm glad it was made. For the most part, you can stack pieces with
underglazes for a bisque, but ALWAYS READ THE LABEL. some underglazes are
specifically for bisqueware and will bubble and, not really glaze, but begin
to flux.
-jeff
Ana Gonzalez-Martingale on fri 17 may 02
Hello, I have a question. I just started experimenting with underglazes and
I
decorated some plates, you know, with fishes and birds. Now, I wasn't sure
if
I should stack them during the bisque firing. They have no glaze, only
underglazes. Well, I decided to put one on top of the other using the
stilts.
However, I would like to know if it is OK to stack them up, just so I know
for the next time. Would underglazes make the plates stick to each other?
thanks
Ana.
Snail Scott on fri 17 may 02
At 12:54 AM 5/17/02 EDT, you wrote:
>...I would like to know if it is OK to stack them up, just so I know
>for the next time. Would underglazes make the plates stick to each other?
Should be OK to stack for bisque.
-Snail
Jeff Tsai on fri 17 may 02
Should be fine to stack underglazed work in a bisque. If you know the
recipes
that could also help. I've occassionally seen underglazes heavy in cobalt
leave faint blue rings, but the cobalt has to be touching the area that the
ring is left on.
if you use commercial underglazes, I've never seen a problem of any kind.
-jeff
Ron Collins on fri 17 may 02
It won't work out if they are duncan concepts...they self glaze and must
always be put on bisque...and then glaze over top...I learned this the hard
way..had a student who bought some and used them here....I told her I didn't
see what difference it would make to put the colorants on
greenware...wrong...............for Concepts, it matters....I usej Amaco
velvets when I get on a painting kick...Melinda
Snail Scott on sat 18 may 02
At 08:35 AM 5/18/02 -0400, you wrote:
>It depends on the underglazes doesn't it? Some of the major brand have a
>line which get glossy and I believe they would stick?
Well, yeah. I guess I just consider anything
that's vitreous enough to stick to other ware
during bisque to be 'not-an-underglaze',
regardless of what the manufacturer calls it.
It's a glaze. A glaze that you can put other
glazes over does not cease to be a glaze.
I should have remembered about those products,
though, since the labelling on some can be
rather unclear, especially to a novice. I
apologize for my too-simplistic answer.
Instead, how about:
Most _nonvitreous_ coatings can be stacked for
bisque without sticking. But, if it gets even
slightly smooth or shiny at that temperature,
it may not be safe to do so. Test first if in
doubt.
-Snail
Ana Gonzalez-Martingale on sat 18 may 02
Thanks for the info. I actually use Mayco but I also bought some Duncan and
it is good to know that with those the stacking thing won't work.
Thanks again for your input.
Ana...
Cl Litman on sat 18 may 02
It depends on the underglazes doesn't it? Some of the major brand have a
line which get glossy and I believe they would stick?
Cheryl Litman - NJ
cheryllitman@juno.com
On Fri, 17 May 2002 07:38:32 -0700 Snail Scott
writes:
> At 12:54 AM 5/17/02 EDT, you wrote:
> >...I would like to know if it is OK to stack them up, just so I
> know
> >for the next time. Would underglazes make the plates stick to each
> other?
>
> Should be OK to stack for bisque.
>
> -Snail
>
>
_________________________________________________________________________
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L. P. Skeen on sun 19 may 02
Snail, DON"T DO IT!!!!!!!!!!! Some underglazes become glazes, or
glaze-like, in the bisque firing and you'll have a stack of ruination on
your hands. :( Ask me how I know this.........
L
----- Original Message -----
> writes:
> > At 12:54 AM 5/17/02 EDT, you wrote:
> > >...I would like to know if it is OK to stack them up, just so I
> > know
> > >for the next time. Would underglazes make the plates stick to each
> > other?
> >
> > Should be OK to stack for bisque.
> >
> > -Snail
> >
> >
> _________________________________________________________________________
> _____
> > 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.
> >
>
>
____________________________________________________________________________
__
> 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.
>
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