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Cobalt Oxide

Original price $20.00 - Original price $20.00
Original price
$20.00 - $20.00
Current price $20.00

Cobalt, a potent coloring oxide, imparts a vibrant blue hue to glazes at all temperatures, turning black in high concentrations. As the most powerful ceramic colorant, it remains stable in most systems, commonly added at 1% or lower. Similar to copper, it exhibits active melting in oxidation. When mixed in a high percentage with a fluid frit base, it crystallizes completely during cooling. While potters have historically used cobalt as a body and slip stain, achieving consistent results without fired specks posed challenges.

  • Powerful colorant: Cobalt is the most effective ceramic colorant, providing intense and stable hues at low concentrations (around 1% or lower).
  • Stability and application: Widely used in glaze recipes, cobalt brings stability and desired blue color to ceramics with precise dosage control.

Sold per the .25lb bag. The price above is price per the .25lb bag. Enter the number of .25b bags. Quantity break pricing will be applied at checkout.
1 bag= .25lbs, 2 bags= .5lbs, 4 bags = 1lb