search  current discussion  categories  glazes - cone 4-7 

glaze test for orange brown glaze, cone 6, ox.

updated thu 3 may 07

 

Alisa Clausen on wed 2 may 07


Glaze test for Orange Brown Glaze, Cone 6, Ox.




Source: Clayart
Credited to: Bill Schran



Fired on mid fire white stoneware



Firing ramp with an electric controller is:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)
80c p/h to 1220c (176f - 2228f)
15 min. soak
cool down max. to 900c (1652f)
Hold 30 minutes

Shut off kiln





Colorants or additives to a 100 gram batch are measured in percent to the
100 gram batch.





Results: Glossy, transluscent medium brown where thinner, more covering
where thicker. Even color overall.



Amount Ingredient
17.5 Dolomite
8 Frit--Fusion F134 recipe calls for G.B. which I
subbed with more 3134
3.5 Talc
5 Frit--Ferro 3134
5 Feldspar--Kona F4
17.5 Spodumene--Foote
1 Kaolin--EPK
17.5 Ball Clay--Old Mine #4
25 Silica

100 Total

Additives
1.5 Iron Oxide--Red
2.5 Ochre--Yellow
3.5 Tin Oxide

Unity Oxide
.107 Li2O
.071 Na2O
.024 K2O
.361 MgO
.427 CaO
.011 SrO
1.000 Total

.349 Al2O3
.072 B2O3
.013 Fe2O3

2.993 SiO2
.008 TiO2
0 P2O5

8.6 Ratio
5.8 Exp