This cone 6 black glaze looks glossy until placed beside the cone 04 one
Monday 25th March 2019
The cone 6 one is on the left, it contains about 25% insight-live.com/glossary/43">frit. Both are colored using a black stain. That low fire glaze on the right has a high percentage of frit, likely more than 80%, that is the main reason for the beautiful surface. Frits are really fantastic, and standard practice in industry. However potters have been slow to adopt them, thinking they are more expensive. But from a "total cost" viewpoint, they are cheaper.
Pages that reference this post in the Digitalfire Reference Library:
This post is one of thousands found in the Digitalfire Reference Database. Most are part of a timeline maintained by Tony Hansen. You can search that timeline on the home page of digitalfire.com.