From @suemcleodceramics • • • • • Here&rsq…

From @suemcleodceramics
• • • • •
Here’s a hyperlapse video of a freshly dipped lichen glaze, drying over 3 minutes. It’s so cool to watch the cracks forming as the glaze shrinks upon drying.
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This glaze contains 20% EPK and 20% magnesium carbonate, which are the 2 ingredients that cause the cracks to form. Both materials swell when combined with water and as the water is pulled out of the glaze and into the bisque, the glaze shrinks. Like a dried up mud puddle.
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I wish I could video the firing process as well. Maybe one day technology will allow us to see inside our kilns as they’re firing.
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#testtiles #glazes #glazechemistry #glazedetails #glazecalc #ceramicscience #glazetesting #glazetests #glazetest #glazecalc #materialscience #lichenglaze #crawlglaze #magcarb #magnesiumcarbonate #epk #understandingglazes #shrinkage #yyjpottery #yyjceramics #vancouverislandpottery #canadianceramics

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