How to Make Underglaze in Your Ceramics Studio
The truth is, I was a nerdy ceramics undergraduate student. I wanted to learn everything, right away—and I loved my … Read More
Tag: zirconium silicate
ZrSiO4—zircon opacifier—inert dispersoid in glaze melt—low-cost substitute for tin oxide—use double the recipe weight of tin. Includes Zircopax, Opax, Superpax, Ultrox. All are toxic in inhalation. Source: Clay: A Studio Handbook
How to Find the Best Kiln Wash for Your Firing Temperature and Methods
Most potters don’t give much thought to kiln wash and just use the recipe they used when they first learned … Read More
In the Studio: Developing Color: Yellow Glazes
The coloring oxides are the transition metal oxides vanadium, chromium, manganese, iron, cobalt, nickel and copper. Transition metals can combine … Read More
Ceramic Stains: The Easy Way to Create All the Colors of the Rainbow on Your Pottery
Nowadays, ceramic artists are spoiled. It wasn’t that long ago that getting the colors and surfaces you wanted took a … Read More
Techno File: Chasing Chun
Chun originated over a thousand years ago in China, first reported in the Song Dynasty, as Jun Ware. While many … Read More
In the Studio: Metal Marking on Functional Ware
Linda Bloomfield and Dave Finkelnburg
Testing standards are important to both the studio artist and his or her customers. While we may give specific instructions … Read More
In the Studio: Yellow Glazes
When fired in oxidation, a small amount of iron oxide (1–5%) gives a honey- or amber-yellow color. Iron oxide in … Read More
Techno File: Opacity: Color and Cost
There are two main opacifiers (one inexpensive, the other costly) commonly used in ceramic glazes. Aside from general opacity, their … Read More
In the Studio: Rare-Earth Oxide Glazes
The rare-earth oxides are not particularly rare, but they can be expensive and have only recently become widely available. They … Read More
Techno File: The Chemistry of Color
Why are some materials transparent and others opaque? Light can be thought of as a beam of light particles called … Read More
