Common Materials Substitutions

Always test before committing to a large glaze batch

Iron

1 Red Iron = 1.11 Yellow Iron
1 Red Iron = 0.97 Black Iron

1 Black Iron = 1.03 Red Iron
1 Black Iron = 1.15 Yellow Iron

1 Yellow Iron = 0.9 Red Iron
1 Yellow Iron = 0.87 Black Iron

Cobalt

1 Cobalt Carb = 0.63 Cobalt Ox
1 Cobalt Ox = 1.59 Cobalt Carb

Copper

1 Copper Carb = 0.64 Copper Ox Black
1 Copper Carb = 0.58 Copper Ox Red

1 Copper Ox Black = 1.55 Copper Carb
1 Copper Ox Black = 0.9 Copper Ox Red

1 Copper Ox Red = 1.73 Copper Carb
1 Copper Ox Red = 1.11 Copper Ox Black

Iron Chromate

1 Iron Chromate (Chromite) = 0.36 Red Iron + 0.68 Chrome Ox

Barium to Strontium Sub

You can substitute strontium for barium in a glaze recipe, but the color and surface character will change most likely

1 Barium Carb = 0.75 Strontium Carb

Nickel

1 Black Nickel Oxide = 0.90 Green Nickel Oxide
1 Black Nickel Oxide = 1.44 Nickel Carbonate

1 Green Nickel Oxide = 1.11 Black Nickel Oxide
1 Green Nickel Oxide = 1.59 Nickel Carbonate

1 Nickel Carbonate = 0.63 Green Nickel Oxide
1 Nickel Carbonate = 0.70 Black Nickel Oxide