Formulating Custom Ceramic Glazes: A Practical Guide

Moving from store-bought ceramic glazes to formulating your own recipes unlocks endless creative possibilities for your pottery. Understanding how raw minerals transform under heat allows you to control color, texture, and finish with precision. This course guides you step-by-step through the core principles of ceramic glaze formulation. You will explore key glaze raw materials, learn how individual oxides influence firing results, and gain the skills needed to design, calculate, and adjust custom glaze recipes safely. What you will learn: Understand essential glaze chemistry concepts, oxide roles, and key terminology. Identify primary ceramic raw materials including fluxes, silica, alumina, and colorants. Calculate glaze formulations using standard recipes and molecular ratio concepts. Perform systematic glaze tests using line blends and test tiles to refine finishes. Troubleshoot common glaze defects such as crazing, crawling, and pinholing. Apply safe handling practices when working with dry ceramic minerals. The material begins with foundational definitions, chemical roles of key glaze components, and safety rules for handling dry materials. You will then progress through glaze calculation techniques, recipe adjustments, and structured testing methods to create personalized, reliable glaze surfaces. Designed for potters and ceramic artists who want to transition from ready-made commercial glazes to custom formulation. No prior chemistry knowledge is required. Start reading today to take complete creative control over your ceramic glazes.