This stain survives high firing to produce red colors that would otherwise be difficult to achieve.
Although manufacturers claim these materials are non-toxic it is clear they must be used exactly as instructed to be safe. It is common for them to be sold without adequate documentation. The manufacturers supply many pages of safety information. See Cadmium in the materials database for hazard info.
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A special class of stains that enable bright and difficult-to-achieve colors in ceramic glazes. They are a recent development in glaze technology. Many companies that hesitated to use these stains in the past now use them in their biggest selling products. These stains can strongly pigment a glaz...