Alisa og Claus Clausen on fri 12 oct 01
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>Date: Wed, 10 Oct 2001 10:32:36 +0200
>Reply-To: Ceramic Arts Discussion List
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>From: Alisa og Claus Clausen
>Subject: Glaze test for Oxblood, cone 6, ox.
>To: CLAYART@LSV.CERAMICS.ORG
>
>Glaze test for: Oxblood, cone 6, ox.
>
>This was tested by Marianne Lombardo. I made some tests with subs.
>
>All tests fired on white, mid-range stoneware.
>Fired in to cone 6 (1220c) in oxidation.
>
>Firing ramp:
>100c (212f) per hour to 600c (1112f)
>150c (302f) per hour to 1100c (2012f)
>100c per hour to 1220c (2228f)
>15 - 30 minute soak depending on matts and glosses used.
>
>Recipe:
>55 Gerstely Borate
>15 Talc
>30 Flint
>
>Add 22 RIO
>Note:
>All raw materials measured up or down to nearest whole decimal.
>Oxides used on percent basis to a 100 gram batch of glaze.
>
>Substitutions: see below.
>
>Resulted in:
>Iron brown semi gloss glaze. I am sure more exciting used as overglaze as
>it is intended.
>
>Subbed local frit for G.B.
>Resulted in a very glittery brown glaze that looks like fool's gold in
>natural light. I have not often seen such a sparkle in a glaze's surface.
>It has a dark background surface with a copper sparkle. Looks like a
>Disney version of Tenmoku.
>
>Will try it with frit 3134. (thanks to Will Edward's gift). This will be
>exciting to try over other glazes.
>
>
>Subbed 15 Ochre for 22 RIO
>Streaky brown gloss, with pale yellow streaking. Ran and streaked, but
>stayed above glaze border.
>
>
>Best regards, Alisa
>in Denmark
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Glaze test for:
All tests fired on white, mid-range stoneware.
Fired in to cone 6 (1220c) in oxidation.
Firing ramp:
100c (212f) per hour to 600c (1112f)
150c (302f) per hour to 1100c (2012f)
100c per hour to 1220c (2228f)
15 - 30 minute soak depending on matts and glosses used.
Recipe:
Note:
All raw materials measured up or down to nearest whole decimal.
Oxides used on percent basis to a 100 gram batch of glaze.
Substitutions:
Resulted in:
Best regards, Alisa
in Denmark
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