overglazing

Overglazing refers to the practice of applying multiple layers of glaze to ceramic or pottery during the firing process. This technique is often employed to achieve specific visual effects, such as creating subtle color variations, building up texture, or developing deep, rich hues that are not possible with a single application. Artists may use different types of glazes, or the same glaze multiple times, to create a layered aesthetic.

The application of overglazes can be done by brushing, dipping, or spraying, with each method offering different levels of control and coverage. The success of overglazing depends heavily on understanding the firing temperatures and chemical interactions between the glazes. Some glazes may become muddy or lose their intended character when layered too thickly or with incompatible materials. Careful consideration of glaze compatibility is crucial to prevent defects like crawling, crazing, or bloats.

Different firing schedules may also be necessary when overglazing, especially if the glazes have different melting points. Sometimes, multiple firings are required, with a glaze applied and fired before subsequent layers are added. This technique allows for greater control over the final appearance, enabling artists to build complex surfaces with depth and luminosity. The precise control of temperature, atmosphere, and application method are all key to achieving successful and aesthetically pleasing overglazed results.