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paper saggar firing questions

updated fri 31 may 02

 

Dannon Rhudy on thu 30 may 02


At 05:32 PM 5/30/02 -1000, you wrote:
>> Aloha from Kauai. ..... in the process of making a kilnload
>>(24 cu ft) of work to fire
>>in paper saggars using Dannon Rhudy's article in Pottery Making
>>Illustrated .... I single fire all my ^10 work and .....

It can be done, but I definitely don't recommend single firing
in paper saggars. The slip-covered paper goes on very wet indeed,
and greenware inside is bound to absorb a good deal of moisture.
I bisque fire first. Never lost a piece doing that.

Generally when firing to pit-fire temps I put in very little salt.
Too much salt permeates the clay, and eventually can cause spalling
(loss of the burnished surface and color). I prefer such colorants
as copper carb, AAAA steel wool (not the kind with soap in the pads),
Epsom salts, seaweed, manure, etc.

I have fired to cone 9-10 using paper saggars to see what various
results I might get. Some of it has been interesting, some boring.
I have fired to stoneware temps with a little salt in bisque cups
inside a paper saggar, with some nice results. Same with a bit of
wood inside, some charcoal or sawdust - a number of things.
Of course the effects one gets at low temperatures are not the same
as one gets at higher temps.
It works, but you
don't really need paper saggars to do that, and they can only be
used once. If you want such effects at stoneware temps, you can just
make a reusable saggar (a sort of can shape with a lid), and it is
easy also. If you use salt inside the saggar at stoneware temps,
put the pot on wadding, or it will stick to the saggar.

regards

Dannon Rhudy