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glaze test for iron red #5, cone 6, oxidation.

updated wed 30 apr 03


Alisa Clausen on tue 29 apr 03

Glaze test for Iron Red #5, cone 6 oxidation

Glaze tested on white midrange stoneware fired in electric oxidation to =

Source: Clayart, Greg Lamont
Credited to:

Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)=20
100c p/h to 1220c (212f - 2228f)
5 min. soak
cool down 80c per hour to 800c
shut off kiln


15 Frit 3134
7.5 Dolomite
15 Spodumene
15 Kentucky OM4 Ball Clay
3.75 Talc
15 Flint
11.25 Red Iron Ox.
1.50 Bentonite

Note: All raw materials are measured up or down to the nearest whole =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.

Local Frit for 3134
Common Ball Clay for OM4

Gloss iron brown glaze with some black speckling in an overall medium =
brown ground. =20
Where thickest, became slightly fluid with a single red speck.

Regards from Alisa in Denmark