Underglaze is a popular ceramic decoration technique that involves applying color and designs to clay surfaces before firing. The final appearance of underglaze, including its shine or glossiness, can vary based on several factors, including the type of underglaze used, the firing process, and the interaction with other glazes.
Matte and Glossy Finishes
Underglazes are available in both matte and glossy finishes:
- Matte Underglaze: Matte underglazes retain a non-reflective, matte appearance after firing.
- Glossy Underglaze: Glossy underglazes maintain a shiny and reflective finish once fired.
Firing Temperature and Interaction
The firing temperature can influence the final appearance of underglaze. Some underglazes may develop a more pronounced shine at higher temperatures, while others may remain matte.
Clear Glaze Over Underglaze
Applying a clear glaze over underglaze can further affect its shine. A clear glaze can enhance the glossiness of underglazes, resulting in a more vibrant and shiny surface.
Testing and Experimentation
Ceramic artists often conduct tests and experiments to achieve the desired level of shine or finish with underglazes. Factors such as layering, firing temperature, and glaze combinations play a crucial role.
Whether underglaze appears shiny after firing depends on its inherent finish, the firing temperature, and the application of additional materials like clear glaze. Artists can explore various techniques to achieve the desired visual effect on their ceramic pieces.