Kat in the Hat on fri 20 feb 04
Robert wrote:
>Subject: Source for *really* white porcelain slip?
>Does anyone have any suggestions on where I might find a *really* white
>porcelain slip?
>Robert Galejs
Robert, do you want a casting slip, or a slip to cover a form? Or a
slip to add colorants?
I have a recipe for a white "casting" slip, however it is not translucent.
For a translucent porcelain you would want to use Kaolin's low in titanium.
As far as I know. (Titanium refracts light - It is however very white).
Grolleg Kaolin is translucent. So use that as a starting point, add your
flux,
and flint.
Cone 6 White Casting slip
0.5% abs. at cone 5 to 7.
Very white, but a bit chalky looking, may increase flux.
30.00 Kaopaque
10.00 #6 Tile
50.00 Neph Sy.
10.00 Superpax
00.1% Spectrum stain blue
---------------
Kat Valenzuela
----------------------
kat@digitalfire.com
Robert Galejs on fri 20 feb 04
Kat -
This slip would be for making antique porcelain doll reproductions, so
your casting slip should fit the bill. Translucence is not needed, but
a surface texture that will grab onto china paint is a must. A chalky
look is probably good.
Thanks,
Robert
Kat in the Hat wrote:
> Robert wrote:
> >Subject: Source for *really* white porcelain slip?
> >Does anyone have any suggestions on where I might find a *really* white
> >porcelain slip?
> >Robert Galejs
>
> Robert, do you want a casting slip, or a slip to cover a form? Or a
> slip to add colorants?
>
> I have a recipe for a white "casting" slip, however it is not translucent.
> For a translucent porcelain you would want to use Kaolin's low in titanium.
> As far as I know. (Titanium refracts light - It is however very white).
> Grolleg Kaolin is translucent. So use that as a starting point, add your
> flux,
> and flint.
>
> Cone 6 White Casting slip
> 0.5% abs. at cone 5 to 7.
> Very white, but a bit chalky looking, may increase flux.
>
> 30.00 Kaopaque
> 10.00 #6 Tile
> 50.00 Neph Sy.
> 10.00 Superpax
> 00.1% Spectrum stain blue
> ---------------
>
>
> Kat Valenzuela
> ----------------------
> kat@digitalfire.com
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