Angobated surface

A thin layer of clay slurry applied to the surface of a ceramic tile before it is fired or glazed, covering part or all of the surface. According to ST SEV 3979.

Engobe surface (engobierte Oberfläche): A thin layer of clay slurry applied to the surface of a ceramic tile or slab, having a matte appearance, which may be permeable or waterproof. According to EN 14411.

Note : Ceramic tiles and slabs with an engobed surface are considered unglazed.