bivaletz ginny on mon 5 mar 01
hi all , i have just learned how to do a paper saggar
and would love to try it at home. my questions are:
can i fire it in my gas kiln during my bisque firing?
will it damage the bisque in any way? can i use salts
in the saggar without damage to the soft bricks or
the bisque?
when i did it for the first time it was fired to cone
08 in a raku kiln and worked well. my only kiln is a
gas and i use it for both bisque and glaze firings.
thanks for any information. ginnyB
=====
ginny from orcas island, washington.
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Dannon Rhudy on tue 6 mar 01
.........have just learned how to do a paper saggar
>and would love to try it at home. my questions are:
>can i fire it in my gas kiln during my bisque firing?
>will it damage the bisque in any way? can i use salts
>in the saggar without damage to the soft bricks.....
Ginny, the pot INSIDE the paper saggar should be a bisque pot,
not greenware. The (obvious) reason for this is that the paper
saggar goes on really wet with slip, and the pot inside would
absorb a lot of water. In experiments students have tried, a
green pot inside a paper saggar has invariably sagged, broken,
or blown pieces off in the firing.
As to the pots you are bisquing, if the saggar is properly sealed it
should not hurt anything at
all to fire it with your regular bisque firing. The only difficulty I see
is that perhaps your regular bisque firing is hotter than you need to
go - or perhaps WANT to go - for a saggar firing.
If you burnish your work, or use terra sig,
then at cone 08 you will find that you lose a certain amount of the
sheen on your pots. And you'll be putting quite a bit of water into
the kiln atmosphere from the wet paper saggar - fire slow.
As to salts in the kiln - unless you blow up the paper saggar or
use tremendous amounts of salt, not much will escape into the
kiln. Put a thin slab of clay beneath your paper saggar, just in
case of breakage, just to protect that particular shelf. As an
aside, I use little or no salt when saggar firing. It makes nice
color flashes, but you will find over time that areas that have
absorbed salt in the firing will spall.
If you really like the effects of saggar firing, then you could also
just wait until you have a kiln load and fire all your paper saggars
at once.
The archives are full of posts on paper saggars, and you could
find useful information there.
regards
Dannon Rhudy
or
>the bisque?
>when i did it for the first time it was fired to cone
>08 in a raku kiln and worked well. my only kiln is a
>gas and i use it for both bisque and glaze firings.
> thanks for any information. ginnyB
>
>=====
>ginny from orcas island, washington.
>
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>Get email at your own domain with Yahoo! Mail.
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