DISPERSANTS Dispersants are used in glazes and engobes to specifically influence the rheological properties and solids content of the slip. Depending on the particular glaze and/or engobe type as well as the application procedure, the desired aim is maximum density at optimum rheological properties without sedimentation.
During the preparation of slips, foam can form through surface active substances and also through the mechanical energy input. Possible consequences can be defects in the glaze in the form of pinholes or dimples. Our antifoam agents prevent foam formation during preparation or, respectively, immediately destroy foam that has already formed.
Biocides are required for the application of organic additives and/or raw materials to counteract their deterioration caused by micro organisms such as bacteria, yeasts or fungi, and consequently to guarantee long-term stability.
Non-foaming wetting agents reduce the surface tension of aqueous glaze systems. They contribute to achieve very smooth surfaces during glazing.
Rheological additives have an important function: they create the prerequisites for a defined reproducible adjustment of glaze rheology, and they guarantee constant results with applications by hand and spray robot on vertical surfaces. Moreover, rheological additives allow a flexible adjustment of the flow behaviour, a stable viscosity, a high glaze thickness as well as an improved adhesion and an increased touch-resistant finish.
Specific suspension aids are used to prevent sedimentation of glazes. Suspension aids are either employed to adjust ready prepared glazes or introduced previously, during preparation via the glaze mill.
Temporary binders bring about an increase in mechanical resistance at the surface of glazes and engobes hence leading to an improved touch-resistant finish. This provokes a good bond between the glaze and the body. Glaze runs on the surface as well as crawling at the edges are prevented by this.
