Answered By: Regan Brumagen
Last Updated: Jul 19, 2016     Views: 21

Thank you very much for your inquiry. The article “Porcelain body for making sulfides.” by Roland Butler in the Independent Glassblower, no. 5, p. 3. states: 

Potash feldspar 17.06 oz 
Edger's plastic kaolin (EPK) 34.8 oz 
Potter's flint 8.0 oz 
Colemanite 5.2 oz 
Whiting 4.0 oz 
Bentonite 2.4 oz 
Ball Clay 2.6 oz 

"These materials are mixed thoroughly dry and then enough water is added to make a plastic putty. The above quantities will make up about 4-1/2 pounds. 

The little pieces molded from this body are air dried and then fired to cone 5 (2200 degrees) in a small kiln. 

Of course the pieces should be heated before trying to mount them in the glass. Also simpler models are easier to gather over without including bubbles." 

also see, http://www.dragonbeads.com/sulphides.html 

Attached is a bibliography of resources that may be of help. If you wish to obtain copies of any of these items, please contact your local library. The Rakow Research Library is a member of the Online Computer Library Center (OCLC); your library can contact us through OCLC or they may mail an Interlibrary Loan form to us. You may request up to five items at a time. We send photocopies of articles and microfiche copies of our books (if they have been microfilmed) through Interlibrary Loan for four weeks use. 

JB

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