Wish your glaze results were more consistent?

Do you have these glaze challenges?

  • You don’t know how much water to add to your glazes
  • You get different results every firing
  • Your glazes aren’t turning out as expected
  • You can’t seem to keep your glaze thickness consistent

Grab my FREE GUIDE

You can fine tune your glazes with a few easy steps. All you need is a scale and a container and it’s super simple to adjust your glazes and keep them consistent.

Understanding Glazes and Studio Tips

Articles written by Sue McLeod

Are You Mixing Your Glazes Well Enough?

Are You Mixing Your Glazes Well Enough?

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 they had hoped. Every now and then…

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Why I Don’t Use a Hydrometer to Measure Specific Gravity

Why I Don’t Use a Hydrometer to Measure Specific Gravity

I didn’t always know about measuring specific gravity. Of the 10 years that I’ve been mixing glazes, I’ve only been measuring specific gravity for 3 of them. It wasn’t a technique I learned in school. But… I had heard about it enough times that eventually I used it to try…

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How to Measure the Specific Gravity of Your Glazes

How to Measure the Specific Gravity of Your Glazes

In this video I demonstrate how to measure the specific gravity of a glaze I just mixed using a graduated cylinder and a scale. Measuring specific gravity is a way to calculate the water content of a glaze to ensure that each time you glaze, you have the same amount of water…

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How to Convert Kaolin to Calcined Kaolin

How to Convert Kaolin to Calcined Kaolin

If you have too much clay in a glaze recipe, you might have issues with your glaze crawling during the firing. Crawling is where the glaze pulls away from the clay body due to a combination of shrinkage, poor adhesion and high surface tension.

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Glazy.org

Glazy.org

Glazy.org is a website where users can upload their ceramic recipes with images, to share with the ceramics community.  Anyone can create an account for free.  You can search for recipes based on colour, texture, temperature and more. Click for more info.

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Don’t Skimp on Safety in the Glaze Lab

Don’t Skimp on Safety in the Glaze Lab

Most of our glaze materials come to us in their very basic, unprocessed form.  They are dug out of the ground, impurities may or may not be removed, they are ground into a fine powder, bagged and shipped to our suppliers. Working with these minerals in their raw state poses some health risks.

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How to Normalize a Glaze Recipe

How to Normalize a Glaze Recipe

When a recipe adds up to 100%, we can easily compare it to other recipes.  This is particularly useful when we have additions like colourants and opacifiers.  The base recipe remains constant while the additions are always relative to 100%. It also allows us to look at 2 recipes side by side and compare the amounts of individual materials. But what do we do if our recipe doesn’t add up to 100%?

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Technofile: Bentonite

Published in Ceramics Monthly – March 2020

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Originally published in March 2020 issue of Ceramics Monthly, pages 62-63. http://www.ceramicsmonthly.org. Copyright, The American Ceramic Society. Reprinted with permission.

"Understanding Cone 6" - 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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