Eduardo Lazo on sat 26 may 07
=E2=80=9CI remember someone telling me awhile ago even though they are in a=20=
saggar=20
that the salts and other chemicals used would affect the later Raku firings.=
=E2=80=93=20
Diane=E2=80=9D=20
Dear Diane, =20
Sodium Chloride starts to become active when the temperature inside your=20
saggar is approximately 1400 degrees Fahrenheit. Salt vapors escape the sag=
gar=20
and swirl inside your raku kiln leaving residue on the kiln walls (brick or=20
fiber). This residual salt will affect the unglazed surfaces of pots in=20
subsequent raku firings. You will see mottled gray patterns where you would=
normally=20
want black blacks. If you like this phenomenon, so be it. If you do not wa=
nt=20
this to happen, =E2=80=9Cclean=E2=80=9D your raku kiln prior to a regular ra=
ku session by=20
firing it to 1800 degrees Fahrenheit. This will remove most of the residual=
salt=20
left behind from your saggar. =20
So, yes, you can use one kiln for both techniques. However, it is nice to=20
have dedicated kilns for each. =20
Eduardo Lazo=20
Belmont, California=20
************************************** See what's free at http://www.aol.com=
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