Clay Craft

Sunday, June 12, 2005

C/4 Seger High Fire Glaze#14


C/4 Seger High Fire Glaze#14
Originally uploaded by claycraft.

Using the Seger analysis of Orton C/4 as a starting point, we designed

the following C/9 glaze base



KNaO .3 Al2O3 .5 SiO2 4.0

CaO .7



Then, we lowered the alumina portion to .300, and the silica portion to 3.0



KNaO .3 Al2O3 .3 SiO2 3.0

CaO .7



The base recipe is as follows :



Custer spar 59

Whiting 22

Silica 19

Total 100



It was colored using Cobalt Carbonate.



#60 = + 0.75% Cobalt Carbonate.



"Ils sont fous ces quebecois"

"They are insane these quebekers"

"Est´┐Żn locos estos quebequeses"

Edouard Bastarache

Irreductible Quebecois

Indomitable Quebeker

Sorel-Tracy

Quebec

edouardb@sorel-tracy.qc.ca

www.sorel-tracy.qc.ca/~edouardb/Welcome.html

http://perso.wanadoo.fr/smart2000/index.htm

http://www.digitalfire.com/education/toxicity/