Carol Tripp on tue 29 apr 03
cone 6, ox.
To get the purple (aubergine), you need the chrome and tin and the cobalt
and rio. Maybe you knew that.
Best regards,
Carol
Dubai, UAE
>From: Alisa Clausen
>Reply-To: Clayart
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Glaze test for Raspberry (Mastering Cone 6 Glazes) as Purple,
> cone 6, ox.
>Date: Tue, 29 Apr 2003 13:52:14 +0200
>
>Glaze test for Raspberry (Mastering Cone 6 Glazes) as Purple, cone 6, ox.
>
>Glaze tested on white midrange stoneware fired in electric oxidation to
>1220c.
>
>Source: MC6G and Clayart revision.
>Credited to:
>
>Firing ramp:
>100c p/h to 600c (212f - 1112f)
>150c p/h to 1100c (330f - 2012f)
>100c p/h to 1220c (212f - 2228f)
>5 min. soak
>cool down 80c per hour to 800c
>shut off kiln
>
>Recipe:
>
>See Mastering Cone 6 Glazes
>Hesselberth/Roy
>
>
>Note: All raw materials are measured up or down to the nearest whole
>decimal.
>Colorants or additives to a 100 gram test batch are measured in percent to
>the 100 gram test batch.
>
>Substitutions:
>
>Frit 623 for 3134
>
>Added
>1.0 Cobalt Carb.
>0.25 RIO
>(instead of Chrome/Tin ox.)
>
>Results:
>Gloss blue glaze that has many variations on a smooth. Lush covering with
>streaking and movement.
>Glaze at bottom edge thickened but did not run.
>
>
>Regards from Alisa in Denmark
>
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