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Mason 6021 encapsulated stain in Plainsman M370 transparent fired at cone 6 on M370 (with second layer of two other colors). Notice the bubbling. This stain is rated to 2300F, it appears that even cone 6 is pushing its limits.
| Glossary | Encapsulated Stain This is a type of stain manufacture that enables the use of metal oxides (like cadmium) under temperature conditions in which they would normally fail. | 
| Materials | Mason 6021 Red Stain An encapsulated red stain, it has proven better than any other red we have ever tried for glazes. And it works in bodies. | 
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