Keith Chervenak on tue 20 aug 96
Valice,
Here are two glazes you may want to try. I've used them both and
have gotten silvery results, although I've never really pushed to see if
how silver they could go. If my memory is correct the Gold Raku is taken
from Steve Branfman's book (reference is at home!) and the Reynolds Rap
came from the Clayart data base on the SDSU Ceramics Web page. If you try
them I'd love to hear how they work for you. Good luck!
Keith
Enjoying summer in Cleveland, Ohio
Gold Raku
Gerstely borate 80
Cornwall Stone 20
Tin Oxide 1.0
Silver Nitrate 2.0
____
103%
A silver-gold glaze that is very reliable. Mix up only
the amount you need and use it immediately. Sliver
nitrate is a soluble salt that is sensitve to light and
will lose strength when mixed in water and expsed to
light. Robert Piepenburg
Glaze Name: Reynold's Rap
Cone: 08 - 06
Color:
Testing: Untested
Surface:
Firing Type: Raku
Glaze Type:
Date: 7/19/95
Ingredients % Amounts
Gerstley Borate 63.64
Custer Feldspar 12.12
Silica 12.12
Ball Clay 6.06
Barium Carbonate 6.06
Total: 100.00 %
Also add: (colorants, etc.)
Copper Carbonate 12.12
Estimated Thermal Expansion: 83.96 x10-7
Silica/Alumina ratio: 11.6:1
Keith Chervenak
kac2@po.cwru.edu
Case Western Reserve University
Cleveland, Ohio U.S.A.
John Britt on tue 20 aug 96
Yea, I used to use this:
Pemco frit 25 - 42.5
Ferro frit #3134 27.4
Lithium carb. 9.8
EPK 6.3
Silica 14.0
Bentonite 2.0
Soda Ash 1.0
and
CMC
Add:
Silver nitrate 2.1
It's a great base.
John Britt
Dys-Functional Pottery
claydude@erinet.com
http://www.erinet.com/claydude/britt1.html
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