How to Measure the Specific Gravity of Your Glazes

Video Tutorial

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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If you love learning about and discussing glazes, I'd like to invite you to my free social learning Facebook group called Understanding Glazes with Sue. The group is full of videos and discussions about firing, mixing glazes and fixing various glaze issues. Please join!

Learn to Mix Glazes from Scratch

If you’ve never mixed a glaze from scratch before and want to learn, I teach an online workshop called Glaze Mixing Essentials where I show you all the steps to mix a glaze and then test a base glaze with multiple colourants. Click the link for all the details.

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