Anne K. Wellings on mon 18 mar 02
Hi, Michele, I was going to send you the slip recipes I use but found in
the Clayart Archives either identical or very similar ones that sound
even better. Here's the link for that search page, or just search Bringle
Slip:
http://lsv.ceramics.org/scripts/wa.exe?S2=CLAYART&D=0&L=CLAYART&q=Bringle
+Slip&s=&f=&a=&b=
Look at the posts for Wet, Dry, Bisque Slip, Wonder Slip, C Slip and
Cynthia Bringle Slip. They are the same except some use Custer Feldspar
and some use Nepheline Syenite. (I think Bentonite is optional, keeps
slip from settling and hardening in bottom of container.)
For ^10, I have used the Feldspar version.
For ^6, I use the Neph Sye version. (My version has some talc in place of
some of the neph
sye, an idea I got from Daniel Rhodes' book, but looking at these, I
don't suppose that's necessary.)
For low fire, I have substituted Frit 3134 for the Neph Sye or Feldspar,
with good results.
I am intrigued that this recipe is said to work on dry or bisque as well
as damp ware. I didn't know that was possible, and am wondering if it is
true for both the Custer Spar version (as one person said) and the Neph
Sye version. Another person said the Neph Sye version can be fired at
^10-11, and gave tips for successful dry and bisque application (this
post was entitled C Slip Recipe).
I know you were mainly interested in low fire at this point. Keep in mind
that you can probably use a ^10 or ^6 slip successfully at low fire as
long as it has glaze over it to bring out the color. I have seen the ^10
Bringle Slip used in raku with good results. I would think the main
reason to use a specifically low fire slip would be if you were going to
leave it unglazed and wanted it vitreous enough for the colors to show
up. That is why I use what I think of as a specifically ^6 slip for my ^6
work.
The colorants I use are:
Rust- Red iron oxide 10%
Blue- Cobalt Carb 3%
White- Zircopax 15%
Teal- Cobalt Carb 3%
Chrome Oxide 4%
Green- Chrome Oxide 4%
Turquoise- Cobalt Carb 0.5%
Chrome Oxide 1%
Tan/Yellow Rutile 6% (some use up to 20%)
Black Cobalt Oxide 5.5% or Cobalt Carb 11% (could
be less, see recent Clayart)
Manganese Dioxide 11%
(with the Neph Sye recipe at ^5-6, this black is
shiny and beautiful without glaze. I'd
expect it to be blue under most glazes.)
Anne
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