Exploring the Art and Science of Ceramics

Kiln opening surprises? Glazes not what you were expecting?

Glaze results are affected by application thickness, which is affected by the water content in our glazes. You can control your glaze's water content by measuring the specific gravity and making sure it's always consistent.

Consistent water content = consistent application thickness = consistent results! Take control of your glazes with this free step-by-step guide to measuring specific gravity for repeatable results.

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Understand Your Glazes and Your Pottery Studio

Articles written by Sue McLeod, a studio technician and glaze explorer

A Low Tech System for Recycling Clay Scraps

A Low Tech System for Recycling Clay Scraps

As clay artists, we’re so lucky that we can reduce the amount of waste we produce by reclaiming or recycling our unfired clay. (I use the words “reclaim” and “recycle” interchangeably.) When we make something that cracks, warps...

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Do You Put Witness Cones in Every Firing?

Do You Put Witness Cones in Every Firing?

I receive a lot of glaze questions and the first question I generally ask in return is "What did the cones look like?" This is because knowing whether the kiln was over- or under-fired is important for diagnosing many glaze...

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How to Add Bentonite to a Wet Glaze

How to Add Bentonite to a Wet Glaze

  Photos, instructions and a video down below!What is bentonite? Bentonite is a very fine particle clay that’s often used as a suspending agent in glazes. Glazes need clay in them to keep all the other materials suspended...

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How Well Are You Mixing Your Glazes?

How Well Are You Mixing Your Glazes?

Glaze results on the thin side? As a studio technician at a busy pottery studio, it’s my job to mix and maintain 20 different studio glazes. I’m also the one studio users often go to for help when their glazes don’t work out as...

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Intro to Glazy.org – Video Tutorial

Intro to Glazy.org – Video Tutorial

Recipe sharing Glazy.org is a free ceramic recipe sharing website where users can upload glaze recipes and photos to share with the ceramics community. Intro to Glazy.org If you've never used Glazy.org before, this is a...

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“Understanding Cone 6”

NCECA presentation – Pittsburgh 2018

My NCECA presentation “Understanding Cone 6” is all about using glaze chemistry, the Unity Molecular Formula and the Stull chart to understand how different surfaces are created at cone 6. Which glaze formulas are likely to be matte or glossy? Which ones are likely to be crazed or be under-fired? How does flux ratio impact fired results?

“Understanding Cone 6” presentation slides and script are available as a free download!

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