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Lesson Plans

RE: egyptian paste

[ Thread ][ Subject ][ Author ][ Date ]
Robert Alexander Fromme (rfromme)
Wed, 19 Mar 1997 08:40:55 -0600

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Just a note of caution on the use of Soda Ash in Egyptian Paste with kids.
This chemical is caustic. Be careful with it.

Cobalt and Copper Oxide can also cause health problems. Use caution with
these also.


At 07:36 AM 3/19/97 EDT, wrapf wrote:
>Egyptian Paste from Daniel Rhodes "Clay and Glazes for the Potter":
>Feldspar 40
>Flint 20
>Kaolin 15
>Ball clay 5
>Sodium Bicarbonate 6
>Soda Ash 6
>Whiting 5
>Fine Wnite Sand 8
>Fire to cone 08
>Add Bentonite to increase plasticity
>About 3% Cobalt Oxide will give a strong blue
>Copper Oxide 3-6% will produce turquiose.
>Bill R.
>Souhegan HS

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