Red Chun

Cone 10 Red Chun

43.40  G-200 Custer
27.27  Silica
9.37    Gerstly Borate
4.54    Barium Carb
2.56    Whiting
1.70   EPK
1.70   Zinc Oxide
4.54   Bentonite

add
.085 Red Iron Oxide
2.55 Tin Oxide
3.12 Copper Carb

This recipe was pulled from Michael Coffee's blog.



Apply thick and reduce hard.

Carlton Ball Clear Chun Cone 9-10

 42.4  Feldspar (Custer)
1.8    Kaolin (EPK)
26.5  Flint (325)
2.6    Whiting
8.8    Gerstley Borate
8.8    Dolomite
1.76  Zinc Ox
4.4    Barium Carb

 This is a cone 9-10 Clear Chun for oxidation.

It's proving to be a Chun that plays well with stenciled slips and is stable with minimal crazing in the surface.
It has those beautiful little micro bubbles suspended in the glaze, but you've really got to get up on it to see the effect.

to get a nice Chun White effect.
 Add
2.6   Tin Ox

 And/Or add
0.5  Copper Carb
5.6  Rutile
0.2   Cobalt Carb

for a nice light blue chun

Playing with Chun

Question marks are what keeps things interesting when we play with glaze and fire. Tara brought this glaze into the studio. It's a Laguna Chun.

It's a semi-opaque glossy glaze that is transparent when applied thinly.
The first test went through the kiln gave a translucent finish.
This time through it did something very unexpected...

It's just a guess, but I'm thinking a reaction to the iron in the clay body and a long heavy reduction started bringing out the reds, or maybe it's just the cobalt acting in a way I haven't seen before, I'm just shrugging on this one.