Cone 5/6 Glazes

All of these glaze recipes have been tested on white, mid-range clay fired to cone 5 in oxidation.

Clay body: a white stoneware body for mid-range (cone 5/6), or so-called "porcelain" clay body (cone 5/6) commercially available.

Bisque firing temperatures: Cone 05 (1910F), fired in an automatic (computer-controlled) electric kiln for approximately 10 hours, after 6 – hours pre-heating process.

Glaze firing temperatures: Cone 5 (2210F), fired in an automatic (computer-controlled)  electric kiln with Orton cones as a witness for approximately 8 hours. The cooling process was natural.

Glazing method: Hand dipping or spraying. A tablespoon of Epsom salt is added to each batch. This is totally optional.

 

 


Top half of the pot: Ellen Shankin’s Fake Ash glaze (Cone 5 – 10)*

Red Art Clay or Arroyo Slip Clay             60

Whiting                    30

Barium Carbonate** 10

total                       100

*This glaze is originally designed for cone 10, but works all the same in cone 5. Ms. Shankin once explained that “fake ash” is a sad, misleading name because what it really is an over-fired earthenware slip. It opened my eyes.

**this percentage exceeds the current food-safe standard in the United States.

 

Bottom half of the pot: Vivid yellow (satin, semi-opaque)


Whiting                31

EPK                      25

Arroyo slip clay    44

Total                  100

*Spray thinly to have the strong color.

*You can use Alberta slip clay instead of Arroyo.


Caramel (transparent and glossy)

 

Kona F-4 feldspar*         50

Wollastonite                  20

EPK                               10

Silica                             10

Gerstrate Borate            10

Total                           100

+4 – 5 % Red iron oxide

*Kona F-4 Feldspar is no longer available in the market. Minspar/NC-4 Feldspar is considered as a substitute for F-4.


Leaf Green (Satin, opaque)


EPK                       20

Silica                     20

Wollastonite          20

Ferro Frit #3134    20

Custer Feldspar     20

Total                   100

+2% Red iron oxide

+1% Copper carbonate



Tea dust base (clear, glossy with tea dust)

Ferro Frit #3134     50

EPK                         30

Silica                      20

Total                    100

*works great with colorants!


85/15 turquoise (glossy, transparent, great crackles)

Any soda feldspar*      85

Whiting                      15

total                         100

+Zinc oxide                 6%

+Copper carbonate      1%

 

*Kona F-4 Feldspar is no longer available in the market. Minspar/NC-4 Feldspar is considered as a substitute for F-4.

 


Good Blue Lichen (glossy, opaque with tea dust)


G. Borate          50

EPK                   15

Silica                35

Total              100

+2% Iron chromate

+0.1% or just a pinch of blue commercial stains* (use a commercial stain instead of cobalt to ensure the even color)


Clear 2617 (glossy, transparent, good with colorants)

 

F-4 Feldspar*              46

G. Borate                   30

EPK                           13

Silica                         11

Total                       100

*Kona F-4 Feldspar is no longer available in the market. Minspar/NC-4 Feldspar is considered as a substitute for F-4.

 

 


Crystal Emerald Green (glossy, transparent with crystals without any special heating procedure)

 

Lithium carbonate        10.8

Soda Feldspar*               27.3

Wollastonite                 27.2

EPK                              11.7

Silica                            23.0

Total                          100.0

+2% Bentonite

+4% copper carbonate (or +0.5% cobalt carbonate for blue)

*Kona F-4 Feldspar is no longer available in the market. Minspar/NC-4 Feldspar is considered as a substitute for F-4.

 


Eggshell (semi-glossy, semi-opaque)

Whiting                  9.5

Zinc oxide             5.5

Ferro Frit #313444.5

Soda feldspar*      20.0

Bentonite              7.5

EPK                       5.0

Silica                    8.0

Total                100.0

+9.0% Zircopax

*Kona F-4 Feldspar is no longer available in the market. Minspar/NC-4 Feldspar is considered as a substitute for F-4.

 


Ann Arbor Art Center Transparent matt (glossy, transparent, good with colorants)

Ball clay               40

Ferro firt #3124   30

Wollastonite         25

Dolomite               5

total                  100

+Copper carbonate 1% for apple green

 


L.V. Baby blue (sweet, creamy semi-opaque, shiny, good for white clay body)

Dolomite                17

Custer feldspar      34

Ferro frit #3134     14

EPK                        17

Silica                      17

Zinc oxide              10

Gerstrate borate*   10 (or any type of borate)

Superpax                 5

total                     124 (Thanks, June!)

+Bentonite               2%

+Baby blue color commercial stain  2 – 5%



Fake old Chinese celadon (mottled, semi-opaque, semi-satin, good with colorants)

Dolomite               20

Talc                       10

Any feldspar          60

EPK                       10

total                    100

+Copper carbonate 1%



Raspberry (glossy, opaque, always works)

Whiting                    20

Nepheline syenite    18

Ferro Frit #3134      14

Ball clay                   18

Silica                       30

total                      100

+Chrome oxide   0.2%

+Tin oxide          7.5%



Butterscotch (Semi-satin, opaque)

Ferro frit #3134         20

Dolomite                   20

Spodumene               20

OM4 Ball clay            20

Silica                         20

total                        100

+Titanium dioxide    10%

+Rutile                       6%



Crackled base (glossy, transparent with crackles, runny but nice)

Ferro Frit #3110     90

EPK                         10

Total                     100



Warm Chun celadon (semi-opaque, semi-matt with crackles)

Dolomite              20

Ferro Frit #3134   20

Spodumene          20

Ball clay               20

Silica                    20

Total                  100

+1% Copper carbonate


Fake Korean celadon (glossy, transparent, sometimes crackles)

 

F-4 Feldspar*              46

Gerstrate Borate*       30 (or any substitute)

EPK                            13

Silica                          11

Total                        100

+0.5% Iron chromate

+0.5% Copper carbonate

*Kona F-4 Feldspar is no longer available in the market. Minspar/NC-4 Feldspar is considered as a substitute for F-4.


Semi-Matt Magnesia (satin, small, bubbly fluffs, good for sculpture/spots)

Nepheline syenite                   50

Talc                                        37

Whiting                                     4

Zinc oxide                                4

EPK                                           5

Gerstrate borate                       5 (or any borate)

total                                      105


Flash-o-pink from Northern Clay Center (cone 04 – 5, opaque, semi-glossy, textured)

Gerstrate borate                 38

Lithium carbonate              10

Nepheline syenite                5

EPK                                      5

Silica                                  42

total                                 100

+Bentonite                           2%

+Rutile                                 3%

+Tin oxide                         10%

 

More are coming soon, please check back.