•The secret to cool bodies and glazes is a lot of testing.
•The secret to know what to test is material and chemistry knowledge.
•The secret to learning from testing is documentation.
•The place to test, do the chemistry and document is an account at https://insight-live.com
•The place to get the knowledge is https://digitalfire.com
Zirconium Encapsulated Stains
The individual particles of these stains have been coated with a refractory layer to enable them to resist being taking into solution in the melting glaze. They thus have a recommended maximum firing temperature and time. This strategy makes it possible to use materials like cadmium with less potential leaching in the fired glaze. However large amounts of these stains must be added to a glaze to achieve the color and they are very expensive.
Although these are zirconium encapsulated the manufacturers still say: The product is considered to be hazardous under OSHA standard 29 CFR 1910.1200. It is a skin, eye, and respiratory irritant.
In Bound Links
Zirconium Compounds Toxicity
The hazards of these materials in the ceramic industry and process
- (Materials - General)
We make no attempt to classify or compile stains available here, there are too many. Individual stain manufacturers offer huge ranges of different colors and color systems (the same color can often be...
By Tony Hansen