David & Diane Chen on sat 14 aug 99
------------------
I ordered two sampler packs from Trinity Ceramic Supply in Dallas. These =
Cerdec
stains were fabulous and in my opinion, much deeper in color than some of =
the
other experiements I had been trying. The bordeaux red, intensive red, =
orange
and turquoise are among my favorites thus far.
Diane
in Massachusetts where the maple trees are already beginning to change =
colors=21
Donald G. Goldsobel on mon 16 aug 99
Diane,
Under what conditions did you fire these stains?
>----------------------------Original message----------------------------
>------------------
>I ordered two sampler packs from Trinity Ceramic Supply in Dallas. These
Cerdec
>stains were fabulous and in my opinion, much deeper in color than some of the
>other experiements I had been trying. The bordeaux red, intensive red,
orange
>and turquoise are among my favorites thus far.
>
>Diane
>in Massachusetts where the maple trees are already beginning to change
colors!
>
Pamala Browne on tue 17 aug 99
Dianne-- what % did you use with the Cerdec stains ? I did not have luck
with these. Also was it high fire? I still have some left and I hate
waste,pamalab
----- Original Message -----
From: David & Diane Chen
To:
Sent: Saturday, August 14, 1999 7:11 PM
Subject: cerdec ceramic stains
----------------------------Original message----------------------------
------------------
I ordered two sampler packs from Trinity Ceramic Supply in Dallas. These
Cerdec
stains were fabulous and in my opinion, much deeper in color than some of
the
other experiements I had been trying. The bordeaux red, intensive red,
orange
and turquoise are among my favorites thus far.
Diane
in Massachusetts where the maple trees are already beginning to change
colors!
David Hendley on thu 19 aug 99
I have been using these encapsulated cadmium stains for years.
There are 4 colors: intensive red, Bordeaux red, orange, and yellow.
I use them at cone 10+ in a wood-fired kiln, and the color still holds
up. This is pretty remarkable; the only tougher test I can think of
would be to try them at cone 10 in a wood-fired salt or soda kiln.
Generally speaking, the colors stay bright primary colors in a
low-fire oxidation situation. Higher temperatures and reduction,
as you would expect, mute the bright colors to more earthy tones,
but they are still, without a doubt, red, orange, and yellow that
are unattainable via any other route at cone 10 reduction.
In this atmosphere, it takes quite a bit of stain for good saturated
color, about 8 - 10% in a glaze, and 12 -15% in a slip.
This gets expensive in a hurry, with the stains selling for about
$40 a pound. I don't know, but I think you would be able to
get by with less as you fire in oxidation at lower temperatures.
The maunfacturer claims that these stains are food-safe, but I
treat them as the dangerous cadmium that they are. That means being
extra careful with the raw stains, and using them only on non-food-
bearing pottery surfaces.
In fact, except for some tests, I only use the stains in slip-glazes
that I brush on the exterior of pots. This serves the dual purpose
keeping them away from food contact points, and making a little
stain go a long way. One pound of stain will glaze or decorate
hundreds of pots used this way.
I've also found it unecessary to keep the orange stain on hand; if
I want orange, I can just mix red and yellow. The two reds are
a little different and I would suggest you try both, to see which you
prefer, and then buy only that one.
The turquoise stain mentioned below is not a cadmium stain, but
it is also one of my favorites. It is also cobalt-free, which means it sells
for a very reasonable $9 a pound. This color also will hold up under
the harshest firing conditions.
Trinity Ceramic Supply is the distributor for Cerdec stains and is across
the parking lot from their offices and (a million dollar stain inventory!)
They offer two stain sampler packages: the four cadmium encapsulated
stains, and a package of 8 or 10 regular stains that includes the
turquoise and I don't know what else.
David Hendley
Maydelle, Texas
hendley@tyler.net
http://www.farmpots.com
At 10:11 PM 8/14/99 EDT, you wrote:
>----------------------------Original message----------------------------
>------------------
>I ordered two sampler packs from Trinity Ceramic Supply in Dallas. These
Cerdec
>stains were fabulous and in my opinion, much deeper in color than some of the
>other experiements I had been trying. The bordeaux red, intensive red,
orange
>and turquoise are among my favorites thus far.
>
>Diane
>in Massachusetts where the maple trees are already beginning to change
colors!
>
David & Diane Chen on mon 23 aug 99
Sorry, have been away for a week and am going through the 400 clayart
messages. The stain samples are not free (in response to some off list
inquiries) and I have been firing them using a 7 step ramp/hold program that
I found in archives via Jan Walker. BTW, I am just experimenting with these
so far and have used 5% stain in the ultraclear Ron Roy formula further down
on the digital fire site. It includes g-200 feldspar, wollastonite, epk,
and Frit 3134. The clay I am using is a very light buff #509 cone 6 tile
clay from Ceramic Supply of New England.
If I find more messages that I haven't responded to via this message, expect
another missive.
Diane
glad to be in my own bed (almost) in Massachusetts, but still on Seattle
time. By the way, the weather was beautiful, not one bit of rain even
though it seemed to be included in the forecast every day. Mount Ranier was
unbelievable
| |
|
