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glaze test for malcolm david shino, cone 10 redux,

updated sun 15 sep 02


Ron Roy on sat 14 sep 02

fired to cone 6 ox.

I got a similar (same alumina and silica ) Seger formula when I dded frit
3134 instead of Alisa's frit - yes the expansion is high even then and it
will craze. Note all the soluble soda in this one - it will move as the
glaze dries and that can be used as a decorative element.

If I were trying to get more colour I would add 5 to 20 lowfire red clay
and increase the frit up to 20 to get more melt - worth a try.

>Glaze test for Malcolm Davis Shino, cone 10 redux., fired to cone 6, ox.
>Glaze tested on white midrange stoneware fired in electric oxidation to 1220c.
>Source: Clayart
>Credited to: Malcolm Davis
>Firing ramp:
>100c p/h to 600c (212f - 1112f)
>150c p/h to 1100c (330f - 2012f)
>100c p/h to 1220c (212f - 2228f)
>cool down max. per hour to 1100c
>cool 80c per hour to 800c
>shut off kiln
>40.91 Neph. Syenite
>17.27 Soda Ash
>9.82 Kona F4 Soda spar
>18.18 EPK
>13.82 OM4

>Added 10% Borax Frit to above recipe.
>All white, thick, covering shino glaze. Crazed.
>Regards from Alisa in Denmark

Ron Roy
15084 Little Lake Road
Brighton, Ontario
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513