Mert & Holly Kilpatrick on fri 18 sep 98
>Holly,
> Would you mind posting the Berry Rust glaze? It sounds
interesting. Thanks
>Toni
>
>
++++++++++++++++++++++
+++ Berry Rust +++
++++++++++++++++++++++
Range: 7-10 (It is fine at 6 also)
Firing type: Oxidation
Color: Red
Source: Bob Kavanaugh, Clayart
Date: 12/31/97
Flint 27.3%
EPK 18.2%
Nepheline syenite 18.2%
Dolomite 9.1%
Gerstley borate 9.1%
Talc 9.1%
Bone ash 9.1%
------
100 %
Red iron oxide 9.1%
===========================
Chemical Analysis (components only)
===========================
Na2O 0.09 Al2O3 0.33 SiO2 2.55
K2O 0.03 B2O3 0.19 P2O5 0.08
MgO 0.35
CaO 0.53
Alumina:Silica ratio is 1.00 : 7.67
Neutral:Acid ratio is 1.00 : 5.00
Alkali:Neutral:Acid ratio is 1.00 : 0.53 : 2.63
Na2O 2.0% Al2O3 12.9% SiO2 58.1%
K2O 1.0% B2O3 5.1% P2O5 4.3%
MgO 5.4%
CaO 11.3%
This is a rich dark glossy red with mottling.
Holly
E. Bangor, PA
Wendy Moore on sun 20 sep 98
Toni,
I have used this glaze on porcelain at ^10 in reduction and get a
beautiful brown/burgundy/gold, almost a "hare's fur" looking glaze. It has
become a favorite in the community college studio I work in. It doesn't
seem as nice on stoneware however.
Wendy Moore, the Apron Lady
Mert & Holly Kilpatrick wrote:
> ----------------------------Original message----------------------------
> >Holly,
> > Would you mind posting the Berry Rust glaze? It sounds
> interesting. Thanks
> >Toni
> >
> >
>
> ++++++++++++++++++++++
> +++ Berry Rust +++
> ++++++++++++++++++++++
>
> Range: 7-10 (It is fine at 6 also)
> Firing type: Oxidation
> Color: Red
> Source: Bob Kavanaugh, Clayart
> Date: 12/31/97
>
> Flint 27.3%
> EPK 18.2%
> Nepheline syenite 18.2%
> Dolomite 9.1%
> Gerstley borate 9.1%
> Talc 9.1%
> Bone ash 9.1%
> ------
> 100 %
>
> Red iron oxide 9.1%
>
> ===========================
> Chemical Analysis (components only)
> ===========================
>
> Na2O 0.09 Al2O3 0.33 SiO2 2.55
> K2O 0.03 B2O3 0.19 P2O5 0.08
> MgO 0.35
> CaO 0.53
>
> Alumina:Silica ratio is 1.00 : 7.67
> Neutral:Acid ratio is 1.00 : 5.00
> Alkali:Neutral:Acid ratio is 1.00 : 0.53 : 2.63
>
> Na2O 2.0% Al2O3 12.9% SiO2 58.1%
> K2O 1.0% B2O3 5.1% P2O5 4.3%
> MgO 5.4%
> CaO 11.3%
>
> This is a rich dark glossy red with mottling.
>
> Holly
> E. Bangor, PA
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