Robert,
Please let us know of the results. I have tried making slip once and made a
mess of it. Couldn't deflocculate it properly. I am not saying that to
discourage you, quite the contrary, I wouldn't mind trying again and hearing
your experience might just push me in the right direction too.
Andrea


"Uncle John" wrote in message
...
It is going to be much easier to make your own.

The following are recipes are a starting point for porcelain and bone
china

Porcelain is made from 60% china clay, 20% feldspar and 20% quartz,

Fine bone china is 50% bone ash - which adds strength, extra whiteness
and translucency - 25% china clay and 25% feldspar.

Plus of course a deflocculant

New Zealand China Clays Ltd mine and manufacture the whitest china clay
in the world and is marketed as Ultrafine China Clay. It is exported to
twenty countries and should be available in the US.

Web site http://www.halloysite.com/index.htm

Its analysis is

Ca 0.07, Na 0.06, K 0.05, Al 35.8, Si 50.1, Fe 0.28, Ti 0.08, Mg 0.06

As you cab see the impurities ofiron and titania are very small

You may find this link interesting

http://www.ceramicindustry.com/CDA/A...res/BNP__Featu
res__Item/0,2710,93168,00.html

Two side bars

I have been using a white stoneware clay. In oxidation it is dead white,
in reduction it is a non descript grey.

If you make up a porcelain slip you can add toilet paper to make a paper
clay. You then can pour it over a plaster or glass surface to get very
fine translucent sheets.

Could this be called 'casting' about for information

John W