High Fire Glazes
cone 11
Our beautiful high-fire glazes are designed to be used with high-fire stoneware clays and are fired in a reduction atmosphere in our gas kiln to cone 11. The glazes in the high-fire range are rich and full of character and include some more traditional recipes.
Bottle Green
Colour: Pale green celadon
Transparency: Clear
Surface: Glossy
Tips: Works well on white clay and a lovely grey/green on brown clay. Works best dipped or poured but crawls if too thick.
Ching pai
Colour: Pale blue celadon
Transparency: Clear
Surface: Glossy
Tips: A very pale transparent blue celadon. Because this glaze is transparent, the colour of the clay will show through and affect the colour of the glaze: the brightest colour is achieved over porcelain.
chun
Colour: Pale blue
Transparency: Translucent / semi-opaque
Surface: Glossy
Tips: When used by itself looks very similar to Ching Pai, although slightly more blue, but actually has some opacity when thicker caused by tiny bubbles. Chun tends to run more than the other stoneware glazes. It’s used over Tenmoku to create bluish-white patterns, but it’s important to remember when double-dipping it that it will run down the pot a lot and allow for this (don’t double dip past halfway).
Chun over copper red can give a purple effect.
copper red
Colour: Red
Transparency: Translucent / semi-opaque
Surface: Glossy
Tips: A vibrant red glaze, works well with pale blue. Copper glazes are somewhat unpredictable. The copper red doesn’t have much copper in it, so if applied too thin or fired in a hot spot in the kiln, the glaze can burn out and be a very pale blue/clear.
duncan’s white
Colour: White
Transparency: Opaque
Surface: Glossy
Tips: A shiny, clean white with good coverage. The whiter of the two stoneware whites. Doesn’t speckle over brown clay.
Lex’s white
Colour: White/off-white
Transparency: Opaque
Surface: Satin
Tips: This glaze is a less shiny and bright white than Duncan’s white and speckles beautifully over brown clay.
oribe
Colour: Dark green
Transparency: Opaque
Surface: Glossy
Tips: This is a copper saturated glaze and comes out dark green with a metallic sheen. Because of high levels of black copper oxide it is not food-safe. If acidic foods are put in contact with it (pineapple, tomato sauce, etc) the glaze will change so it’s generally best not to use on food-contact surfaces.
Works beautifully in salt/soda firing.
pale blue
Colour: Blue
Transparency: Opaque
Surface: Satin/matte
Tips: More a mid-blue than pale. Works well when sprayed or with a thin coat to get breaking over edges. Will speckle over brown clay if not too thick.
shino
Colour: White/orange/brown
Transparency: Opaque
Surface: Satin
Tips: Fires white where thick and orange to brown where thin. This effect is strongest on brown clay - white clay will give a peach colour where thin. Thick white shino will craze and takes India ink well for a crackle effect.
Shino is an unusual glaze, it’s more like a clay, and reacts badly if applied over other glazes - may cause roughness or bubbling. Usually okay under other glazes.
tenmoku
Colour: Black/brown
Transparency: Opaque
Surface: Glossy
Tips: On brown clay, shiny black where thick, brown where thinner. Breaks from black to brown on edges. On white clay it may be a more greenish slightly transparent black.
Works beautifully under Chun.
Tessha
Colour: Red-brown
Transparency: Opaque
Surface: Satin
Tips: Reddish/purplish brown. Layers well with wax resist and other glazes underneath - Lex’s White, Pale Blue, Ching Pai. Goes blackish brown over Pale Blue.