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
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
Three Helpful Tips for Layering Glazes, Plus Great Glaze Combinations
While applying one single glaze to a piece can be lovely, there are some effects that come only from certain … Read More
Cone 6 Matte Glaze Recipes and Glazing Techniques
I looooove a good old buttery matte glaze surface! Donna Polseno creates beautiful buttery matte surfaces with a lot of … Read More
How to Make Casting Slip from Your Clay Body
Ready-made casting slip is commercially available in all firing ranges, making it super convenient, but if you were wondering how … Read More
Calculating the Specific Gravity of Terra Sigillata
I have been making hanging planters lately, decorated with colored terra sigillatas. I love the surface of these pots—matte, but … Read More
Crazy Beautiful Crazing: Uncovering the Mysteries of Snowflake Crackle Glazes
I have been messing around with crazing as a deliberate decorative effect lately. Though it is technically a glaze defect, … Read More
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
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
