| Monthly Tech-Tip | No tracking! No ads! |
URL: The Chemical Analysis Project in Argentina
Click the link below to go to this page
https://glazy.org/posts/432463
They are undertaking a study of frit chemistries (by having them analyzed) to see how much they vary and how much they differ from data published by manufacturers.
Related Information
The quality of frits is declining
The glaze defects are caused by precipitates that have formed in this glaze slurry within days of batching it. They are refractory and do not dissolve in the glaze melt - creating a defect that is unrepairable. In industry, glazes are batched and sieved as an ongoing process but in pottery and hobby ceramics they are stored for months or even years after batching. It is normal to have to sieve these slurries every few months but in recent years the precipitates form more quickly. Frits are theoretically insoluble, but in practice, they are not. Frit quality is determined not just by careful control of the chemistry but also of the smelting, mixing and water-quenching processes.
Got a Question?
Buy me a coffee and we can talk 
https://digitalfire.com, All Rights Reserved
Privacy Policy