Quick Tip: Specific Gravity of Terra Sigillata
After you have mixed and siphoned terra sigillata, you need to measure its specific gravity. Specific gravity is a measurement … Read More
Tag: specific gravity
The weight or density of a liquid measured in proportion to that of water. A glaze with a specific gravity of 1.2 is 1.2 times as dense as water per unit of measure. See hydrometer. Source: Clay: A Studio Handbook
From the Editor: February 2021
In this issue, which focuses on the business side of being a ceramic artist, individuals discuss the long-term plans and … Read More
How to Decorate Pottery Surfaces with Colored Slips in the Bisque State
Slip has many uses in the pottery studio. Most often, slip is used on clay in the green state, but … Read More
Techno File: The Shino Myth
“Shino first or suffer the curse” is a phrase we have all heard, but what’s the science behind this mantra … Read More
How to Make a Floating Stick Hydrometer for the Cost of a Milkshake
Getting glazes or casting slip to come out the same from batch to batch is a lot easier if you … Read More
Techno File: Glaze-to-Ware Bond
While some glazes have additions that intentionally create a crawled, crackled effect when fired, this is rarely a welcome surprise … Read More
3 Helpful Tips for Casting Clay Sculpture and Pottery
Slip casting opens up endless possibilities for creativity with clay, whether you are interested in casting clay sculpture or pottery. … Read More
Terra Sigillata 101: How to Make, Apply, and Troubleshoot Terra Sig
Terra sigillata is an ultrarefined clay slip that can give a soft sheen when applied to bone-dry wares and, if … Read More
Techno File: Hard-Panning Glazes
Do you have a glaze that settles into a rock-hard layer on the bottom of the bucket? This annoying phenomenon … Read More
How to Siphon Terra Sigillata
My first exposure to the word siphon was in some old movie in which the outlaw characters were siphoning gas … Read More
