Engobe is a term used by some potters to describe a clay slip which is colored with metal oxides or stains and has a bit of flux added to help it smooth out better on a pot during firing. It is used for coating the surface of a pot either before or after bisque firing. Engobe is a term I seldom hear any more. Most potters simply call these materials slips; however, a more accurate way of describing materials would place engobes in between slips and glazes with regard to how well they melt or soften or smooth out in the kiln. See the section on slips for more information.