Talbott on wed 12 feb 97
I have heard from and seen both sides... some say the best copper
reds occur on porcelain and other say the best copper reds occur on
porcelain... Personally the nicest copper red glazes I have seen were on
stoneware... What are your thoughts and opinions on this???
Best Wishes... Marshall
1ST ANNUAL CLAYARTERS' GALLERY - NAPLES, MAINE (Summmer 1997)
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Pottery By Celia
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Dannon Rhudy on thu 13 feb 97
Marshall,
I've seen good ones on both stoneware and porcelain. My
preference is for the slightly less blue reds; I find those
more often on porcelain. On the other hand, we have a very
nice, reliable satin-matt cherry red (cone 9-10)that is great on
stoneware, (ours a warm tan/brown) almost if not quite the same on
porcelain; the students love it.
Dannon Rhudy
potter@koyote.com
----------------------------Original
message----------------------------
I have heard from and seen both sides... some say the best
copper
reds occur on porcelain ... nicest copper red glazes I have seen
were on
stoneware...
Michael McDowell on fri 14 feb 97
Marshall,
I'm glad you are only asking for "thoughts and opinions" on this subject. I'm
not forgetting that you were the one who asked: "Which is more valuable, slip
cast or hand thrown?" And how badly I got my foot stuck in my keyboard over that
one!
I'll be interested to see if any great insights are forthcoming from the list on
this topic. I really don't think there can be a definitive answer to this since
what is "best" in a copper red glaze is such a subjective question. I'm
currently using both an iron spotting dark stoneware body and a smooth "white"
porcelaineous stoneware for my copper reds. While I can't answer your question
with regards to copper reds in general, for any one "red" glaze I will have
definite preferences as to which clay body brings out the finest qualities.
It seems to me that translucent burgundy reds are best with the white background
of a porcelaineous body. On a dark stoneware these glazes tend to be too dark &
muddy looking for my taste. But if one is getting good "all over" development of
the red, such glazes can start becoming a little boring after a while. Lately I
have been getting more excited over more opaque reds that develop well on my
dark stoneware and have more variety in their coloration due to the influence of
varying amounts of iron bleeding into the glaze from the body beneath. One
copper purple I have been using just makes me want to puke its so garish on a
white clay, but on the dark stoneware it is a nice gray where thin that looks
great with the purple where thick & lends itself to trailing the glaze over
itself.
Another consideration in choosing a clay body for a particular red glaze is how
the glaze looks if it doesn't turn red. In many cases the most dramatically
beautiful pieces can result from flashes of red or streaks of "non-red"
resulting from variation in the atmosphere within the kiln. Even for a given
glaze the "non-red" areas can show quite a bit of variety depending on whether
it results from insufficient thickness of glaze, insufficient reduction, or
reoxidization for example, and between different red glaze formulas I see
variation from transparent white, green, or brown to opaque pale green, blue or
white. Of course different bodies display these effects differently, and
depending on how consistent and even your firings tend to be, this can be a
major factor in choosing the clay body to use with a given red glaze.
OK, I'm done. Let's hear what some of the real experts out there have to say on
the subject.
Michael McDowell
Whatcom County, WA USA
Marget and Peter Lippincott on sun 16 feb 97
Dannon Rhudy wrote:
>
> ----------------------------Original message----------------------------
> Marshall,
>
> I've seen good ones on both stoneware and porcelain. My
> preference is for the slightly less blue reds; I find those
> more often on porcelain. On the other hand, we have a very
> nice, reliable satin-matt cherry red (cone 9-10)that is great on
> stoneware, (ours a warm tan/brown) almost if not quite the same on
> porcelain; the students love it.
>
> Dannon Rhudy
> potter@koyote.com
> ----------------------------Original
> message----------------------------
> I have heard from and seen both sides... some say the best
> copper
> reds occur on porcelain ... nicest copper red glazes I have seen
> were on
> stoneware...
I am definitely looking for a cherry red that will work on tannish
stoneware at cone 10. Could you share the formula?
Peter
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