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
Tag: opacifier
In glaze formulation, a material that produces inert inclusions or minute crystals in glaze, causing it to become opaque. Most common are tin oxide and zirconium silicate. Source: Clay: A Studio Handbook
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
A Potter’s Language
One of the foundations of our work in clay has been the development of a language of marks. This visual … Read More
A Case of the Blues: All You Ever Wanted to Know About Cobalt But Were Afraid to Ask
“Does this come in blue?” Probably every potter who has worked an art fair or festival has been asked this … Read More
Technofile: Chemistry for Potters
The Elements
The elements were forged in nuclear furnaces inside stars. Ordinary stars like the sun burn hydrogen, two hydrogen atoms … Read More
Painted Decoration with Slips and Underglazes
Ceramic artist Bede Clarke has explored a number of different paths in his career. Recently, after focusing primarily on wood … Read More
Testing Ceramic Glazes and Colorants to Expand Your Palette in Mid-Range Firing
Though it would be nice to just mix up a glaze based on a photo and get exactly those results, … Read More
The Colorful World of Majolica: A Beautiful Low-Fire Pottery Glazing Technique
Our summer of DVD filming continues and, in a couple of weeks, Linda Arbuckle will be coming to town to … Read More
Understanding Clay and Glaze Materials: You Don’t Have to Be a Super Genius
Today, we live in an age of super abundance of ceramic raw materials. Innumerable clays and glaze materials offer us … Read More
It Slices, It Dices! Some Simple Glaze Tests Reveal a Ceramic Glaze That Can Do it All (well, almost)
Imagine a ceramic glaze that fires perfectly at both cone 10 and cone 6, in reduction and oxidation, and in … Read More
