What is engobe commonly used as in ceramics?

Engobe is commonly used as an alternative to glaze in ceramics. It is a clay slip that is applied to a ceramic surface before firing, usually to add color or texture to the pottery. Engobe can provide a decorative surface that resembles glaze but often has a different texture and finish, allowing artists to achieve a specific aesthetic without the glossy finish that traditional glazes provide. This versatility makes engobe particularly valuable for creating unique surface finishes and designs on ceramic pieces.

In contrast, the other options do not accurately describe the primary use of engobe. It is not typically used as a base for mosaics, which generally rely on more rigid materials like glass or stone. Engobe also is not utilized as a finishing lacquer; lacquers are typically synthetic finishes designed for wood and not commonly applied to ceramics. Finally, while tool use is important in ceramics, engobe itself is not a carving tool but rather a material applied to enhance the visual appeal of the crafted piece.