What is underglaze?

Underglaze is a type of ceramic decoration technique in which colored patterns or designs are painted onto unfired pottery pieces before they are glazed and fired in a kiln. This technique allows for more intricate and detailed designs than traditional glazing methods, as the colors are applied directly to the surface of the piece.

Underglaze colors are typically made from finely ground pigments mixed with a clay or gum binder to create a smooth, flowable consistency that can be easily applied with a brush or sponge. Once the designs are painted onto the pottery, the pieces are allowed to dry completely before being fired in a kiln at high temperatures.

Underglaze can be used to create a wide range of effects, from delicate watercolor-like washes to bold, opaque designs. It is often used in conjunction with other decorative techniques, such as overglaze or sgraffito, to create unique and visually appealing pottery pieces.

Overall, underglaze is a versatile and popular technique in the world of ceramics, allowing artists and potters to create beautiful and intricate designs on their pottery pieces.