|Monthly Tech-Tip |
These three mugs are made from L215 and fired to cone 04 (in a typical fast firing). The clear glazes are left: G3879E, middle: G2931K and right: G3879F1. The latter appears to be the most promising for creating the most transparent (although it is also applied a little thinner than the other two). That being said, the cloudy center glaze, G2931K, is aesthetically quite striking when applied thickly enough (as shown in the sample test tile).
Clouding in Transparent Glazes
There a many factors to deal with in your ceramic process to achieve transparent glazes that actually fire to a crystal-clear glass
Suspended micro-bubbles in ceramic glazes affect their transparency and depth. Sometimes they add to to aesthetics. Often not. What causes them and what to do to remove them.