Alisa Clausen on tue 7 jun 05
Glaze test for Zakin K15-1, cone 6, oxidation =20
Glaze tested on white midrange stoneware fired in electric oxidation to =
1220c. (2228f)
Source:
Credited to: Richard Zakin
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)=20
80c p/h to 1220c (176f - 2228f)
15 min. soak
cool down max. to 1100c (2012f)
Hold 1 hour
Shut off kiln
Recipe:
40 Neph. Syenite
18 Dolomite
18 Flint
12 Kaolin
6 Bone Ash
2 Lithium Carb.
4 Zinc. oxide
-----------------------
100 gram
ADD
2 Copper Carb.
Note: All raw materials are measured up or down to the nearest half =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.
Results:
Gloss, fluid, dark green, covering glaze. Smooth surface. Dripped and =
ran where thickest around base of test tile.
Regards from Alisa in Denmark
Ron Roy on thu 9 jun 05
Not a stable glaze - will graze on most bodies.
RR
>Glaze test for Zakin K15-1, cone 6, oxidation
>
>Glaze tested on white midrange stoneware fired in electric oxidation to
>1220c. (2228f)
>
>Source:
>Credited to: Richard Zakin
>
>Firing ramp:
>100c p/h to 600c (212f - 1112f)
>150c p/h to 1140c (302f - 2084f)
>80c p/h to 1220c (176f - 2228f)
>15 min. soak
>cool down max. to 1100c (2012f)
>Hold 1 hour
>Shut off kiln
>
>Recipe:
>40 Neph. Syenite
>18 Dolomite
>18 Flint
>12 Kaolin
>6 Bone Ash
>2 Lithium Carb.
>4 Zinc. oxide
>-----------------------
>100 gram
>
>ADD
>2 Copper Carb.
>
>Note: All raw materials are measured up or down to the nearest half decimal.
>Colorants or additives to a 100 gram test batch are measured in percent to
>the 100 gram test batch.
>
>Results:
>Gloss, fluid, dark green, covering glaze. Smooth surface. Dripped and
>ran where thickest around base of test tile.
>
>
>
>Regards from Alisa in Denmark
>
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Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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