Ivor and Olive Lewis on wed 3 oct 07
Marcia Selsor tells us :-
A simple way to accent texture with mason stains in an ungerglaze on
bisque is this recipe:
1/3 Kaolin
1/3 Frit 3110
1/3 mason stain
I would anticipate problems with this mixture. The melting point of the =
Frit may be low enough to fuse during bisque firing. The decorative =
layer then becomes impervious and may not adsorb glaze slop. This will =
lead to unglazed or insufficiently glazed patches on our finished work.
For Stoneware and Porcelain I use a felspar that is the foundation of my =
glaze batch. This sinters well at cone 08 and the decorative work always =
adsorbs water and draws glaze onto coloured areas because it is still =
porous. My glaze fires to an unmarred bright transparent finish leaving =
a clean finish to the images without any blurring of the edges or =
running of the colour.
Mason and Blythe sell Dilatants and Fluxes. The dilutant acts as a =
carrier.
Enjoy the dance.
Best regards,
Ivor Lewis.
Redhill,
South Australia.
Marcia Selsor on wed 3 oct 07
Thanks Ivor.
This one is actually from Val Cushing but his says 25% 25% and 25%
which is 75%.
I use it as a wiped off wash to accent surfaces on low fire
sculpture. I have used it
with Barnard slip in place of mason stain for low fire soda firing on
^1 terra cotta.
Really a beautiful buttery surface whe used that way.
Marcia Selsor
On Oct 3, 2007, at 1:56 AM, Ivor and Olive Lewis wrote:
> Marcia Selsor tells us :-
>
>
> A simple way to accent texture with mason stains in an ungerglaze on
> bisque is this recipe:
> 1/3 Kaolin
> 1/3 Frit 3110
> 1/3 mason stain
>
> I would anticipate problems with this mixture. The melting point
> of the Frit may be low enough to fuse during bisque firing. The
> decorative layer then becomes impervious and may not adsorb glaze
> slop. This will lead to unglazed or insufficiently glazed patches
> on our finished work.
>
> For Stoneware and Porcelain I use a felspar that is the foundation
> of my glaze batch. This sinters well at cone 08 and the decorative
> work always adsorbs water and draws glaze onto coloured areas
> because it is still porous. My glaze fires to an unmarred bright
> transparent finish leaving a clean finish to the images without any
> blurring of the edges or running of the colour.
>
> Mason and Blythe sell Dilatants and Fluxes. The dilutant acts as a
> carrier.
>
> Enjoy the dance.
>
> Best regards,
>
> Ivor Lewis.
> Redhill,
> South Australia.
>
Marcia Selsor
http://marciaselsor.com
Ivor and Olive Lewis on fri 5 oct 07
Dear Marcia Selsor,
I appreciate that there are many ways to use materials.
With Vapour Glazing the tightening of the surface of the applied, high =
flux content engobe during bisque firing would not prevent adhesion of =
the glaze due to a reduction in porosity
Best regards,
Ivor
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