Glaze binders can be used to adjust both the drying time of the slip, as well as the rheological properties. There are also products available which exhibit mainly binding properties, but only have a minimum influence on the drying time and the rheological characteristics.
On the one hand glaze binders are used to produce internal adhesion in the glaze/engobe. This inner adhesion brings about an improvement in mechanical strength of the surface, and hence leads to a better touch-resistant finish. On the other hand a better connection between the glaze and the ceramic piece is obtained, which prevents cracking and crawling of the glaze surface and also at the edges of the piece.