Mayco Raku Glaze – Copper Penny (16 oz)

$24.95USD

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Mayco Raku Glaze – Copper Penny (16 oz)

 

Copper Penny develops a bright glossy copper finish with various iridescent shades of blue and purple following a proper raku firing. Due to the unpredictable nature of this firing technique, results will vary with every firing.


Mayco Raku glazes are designed to develop beautiful metallic lusters and crackle patterns when fired according to raku firing processes. Raku glazes will not produce the same results in a typical electric firing – must encounter a raku environment. Due to the unpredictable nature of this firing technique, results will vary with every firing.

Chips shown are fired flat on a white clay body. The choice of clay body, the thickness of glaze application, the firing process, and temperature will affect the fired results.

 


ACMI CL Seal Logo

 

The CL (Cautionary Labeling) Seal is used on art materials that are certified by a toxicologist to carry potential health risks if not used properly. These products are safe for use when the directions and cautionary labeling are carefully followed but may contain substances that could be hazardous if misused. Materials with the CL Seal are not recommended for children in grade six or lower, or for use by individuals who cannot read and understand cautionary labeling, such as the physically or mentally handicapped. The CL Seal indicates that proper handling, supervision, and adherence to all safety instructions are essential when using these products.


Bubbling or pitting in raku glaze usually occurs when the glaze is heated too quickly. Rapid temperature increase can cause gases to form and escape through the molten glaze, leaving small craters or bubbles that don’t smooth out. To prevent this, slow down the heating rate during firing to allow the glaze to mature evenly and release gases more gradually.

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