Tin glaze — type of ceramic glaze that contains a high proportion of tin oxide. It is known for its opaque and glossy appearance, providing a smooth and lustrous surface to tiles.

The process of applying tin glaze to tiles involves the application of a thin layer of the glaze onto the surface of the ceramic body. The glaze is composed of a mixture of tin oxide, silica, and other minerals, which is then suspended in water or another liquid medium. The tiles are dipped or sprayed with the glaze, ensuring an even and consistent coverage.

Once applied, the tiles are fired in a kiln at a high temperature, typically around 900 to 1100 degrees Celsius. During the firing process, the tin oxide in the glaze reacts with the heat, forming a glassy coating on the surface of the tiles. This coating provides a protective layer that enhances the durability and moisture resistance of the tiles. It has been widely used throughout history in various tile traditions, including DELFTWARE, MAIOLICA, and HISPANO-MORESQUE tiles.