Janice Alexander on tue 1 dec 98
Hello fellow Clayarters,
I add phases and simple sentences to some of the pieces that I make. Does
anyone know of a product, either underglaze or overglaze, that I can use to
write/paint words on a piece that will still be crisp and clean after glazing
and firing? I can't seem to find a one-stroke that doesn't disappear under the
glaze, or one for over the glaze that doesn't "fatten up" when fired, making
it unreadable. I don't have a problem with using a dark color for the writing
over a lighter color background, but I haven't been successful using a light
color over a dark background.
Also, what am I doing wrong with my matte translucent glaze that causes it to
be milky looking after firing? I have tried dipping it, brushing it on,
thinning it, firing it to a higher cone (06, 05, 04, and 03), all to no avail.
Instructions on container say fire to cone 05-04. Other matte glazes that I
use come out just fine, but the clear (yeah, right) translucent never works.
What am I doing wrong? Or have one of you had success with a specific brand
name?
Bill Aycock on wed 2 dec 98
Looks to me like you have a very consistent translucent glaze. I think
there is a problem with definitions- "clear" and ":translucent" are
different things, and do not both describe the same glaze character, just
as "translucent" and "Opaque" are not the same. Transparent and opaque are
the end points, and trranslucent is in the middle, and all refer to the way
light transmits through a substance.
"clear" generally means light goes through without spreading (much), like a
window.
"translucent" means light goes through and spreads, and images are lost,
like light through oily paper.
"opaque" means light doesnot go through, like a metal sheet.
Milky goes with translucent the same way clear goes with transparent
These terms refer to light handling. On the other hand, "Matte" has to do
with surface texture, and is, generally, nearer to "slick" than to "rough",
but is not at either extreme
..
It is hard to get a good matte that is clear, because the surface character
called "matte" sends light in many directions.
Have I added to the confusion?
Bill- at 70 degrees on the first of December, on Persimmon Hill! This
weather really IS confusing.
At 01:53 PM 12/01/1998 EST, you wrote:
>----------------------------Original message----------------------------
>Hello fellow Clayarters,
>
SNIP--
>Also, what am I doing wrong with my matte translucent glaze that causes it to
>be milky looking after firing? I have tried dipping it, brushing it on,
>thinning it, firing it to a higher cone (06, 05, 04, and 03), all to no
avail.
>Instructions on container say fire to cone 05-04. Other matte glazes that I
>use come out just fine, but the clear (yeah, right) translucent never works.
>
>What am I doing wrong? Or have one of you had success with a specific brand
>name?
>
>
-
Bill Aycock --- Persimmon Hill
Woodville, Alabama, US 35776
(in the N.E. corner of the State)
W4BSG -- Grid EM64vr
baycock@HiWAAY.net
Chris Trabka on wed 2 dec 98
Janice ,
I was at a shop in the Napa Valley area of California. There I saw what
you might be looking for. The potter glazed a plate with a light color.
Afterwards he completely waxed the plate, and let it sit for a couple of
days. Next using a fine trimming loop he carved through the wax and
exposed the plate. He lastly re-dipped the plate in a dark glaze. The
carved area now was covered with the darker glaze. The important part
was that both the lighter and darker glazes did not run.
Note: he was able to come up with a design by using a felt tipped marker
and then change his mind (spelling) before comitting the design by
carving.
Chris
Jeanette Harris on thu 3 dec 98
Hi,
I've done a bit of this, but it has been on sculptural works -- I've used
laquer of the model plane variety to do black letters on a galzed surface.
Not too perminant.
You can do very distinct lines with underglaze (Amaco--three coats at
least) and overglaze with the duncan low fire. Don't have the specifics,
since my studio is in the barn and I'm in my warm house :)
Another idea: I've been looking at the overglazes that the Daniel Smith
art supplies store has in my town. It shows overpainting glass and
commercial ceramics with this stuff and cooking it in your local oven at
200 degrees. It is probably worth a test tile, although I wonder what it
does to the interior of my oven.........
Jeanette in Poulsbo WA
>----------------------------Original message----------------------------
>Hello fellow Clayarters,
>
>I add phases and simple sentences to some of the pieces that I make. Does
>anyone know of a product, either underglaze or overglaze, that I can use to
>write/paint words on a piece that will still be crisp and clean after glazing
>and firing? I can't seem to find a one-stroke that doesn't disappear under the
>glaze, or one for over the glaze that doesn't "fatten up" when fired, making
>it unreadable. I don't have a problem with using a dark color for the writing
>over a lighter color background, but I haven't been successful using a light
>color over a dark background.
>
>Also, what am I doing wrong with my matte translucent glaze that causes it to
>be milky looking after firing? I have tried dipping it, brushing it on,
>thinning it, firing it to a higher cone (06, 05, 04, and 03), all to no avail.
>Instructions on container say fire to cone 05-04. Other matte glazes that I
>use come out just fine, but the clear (yeah, right) translucent never works.
>
>What am I doing wrong? Or have one of you had success with a specific brand
>name?
Janet or Michael Francoeur on fri 4 dec 98
The best I've found, and I've tried them all is Axners underglaze pens, the
come in several widths and lots of colors.
janet francoeur
new bern, nc
----------
> From: Janice Alexander
> To: CLAYART@LSV.UKY.EDU
> Subject: Writing over glazes
> Date: Tuesday, December 01, 1998 1:53 PM
>
> ----------------------------Original message----------------------------
> Hello fellow Clayarters,
>
> I add phases and simple sentences to some of the pieces that I make. Does
> anyone know of a product, either underglaze or overglaze, that I can use
to
> write/paint words on a piece that will still be crisp and clean after
glazing
> and firing? I can't seem to find a one-stroke that doesn't disappear
under the
> glaze, or one for over the glaze that doesn't "fatten up" when fired,
making
> it unreadable. I don't have a problem with using a dark color for the
writing
> over a lighter color background, but I haven't been successful using a
light
> color over a dark background.
>
> Also, what am I doing wrong with my matte translucent glaze that causes
it to
> be milky looking after firing? I have tried dipping it, brushing it on,
> thinning it, firing it to a higher cone (06, 05, 04, and 03), all to no
avail.
> Instructions on container say fire to cone 05-04. Other matte glazes that
I
> use come out just fine, but the clear (yeah, right) translucent never
works.
>
> What am I doing wrong? Or have one of you had success with a specific
brand
> name?
Milton Markey on sun 6 dec 98
Hello Janice!
Lesley Ceramic Supply, in Berkeley, CA makes it's own underglaze pens, which
look more like cake decorating gizmos. The underglazes they offer in this
configuration work well with both low and high-fire applications. I especially
like the red underglaze pen color. At cone 6 oxy, the color is a crisp orange-
red. At cone 10 reduction, the result is a bright red. The Lesley pens work
well under many clear glazes, and make splendid lines, lettering, and
decoration without glaze, too.
Lesley also makes a complete line of underglazes, most of which can be fired
from cone 08 to cone 10. One caveat: the green underglazes tend to fade as one
approaches cone 10. The yellow underglaze works quite well at cone 6, but is
best applied thickly for cone 6 and higher. I don't recommend clear-glazing
over Lesley's green and yellow underglazes.
Lesley's address (a catalogue is available, at a nominal cost):
Leslie Ceramic Supply
1212 San Pablo Ave.
Berkeley, CA 94706
510/524-7363
Milton MiltonsLin
In chilly Yucca Valley. Snow is expected tonight, according to the satellite
TV weather forecast. I'm glad I just changed the anti-freeze, covered the
swamp cooler, and replaced the thick plastic covers over the roof!
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