Suspending agents belong to a broad category of additives whose primary role is to ensure the internal stability of ceramic suspensions by counteracting sedimentation phenomena. Available in both liquid and solid forms, these products operate within the suspension to maintain a functional and balanced system.

To keep the solid phase of the mixture effectively suspended, several key parameters must be carefully managed. Chief among these is the viscosity of the suspension, the degree of electrostatic repulsion between particles, and the solid-to-liquid concentration ratio.

This episode explores these three mechanisms in detail, explaining their scientific basis and practical impact on the overall behavior of the suspension.

The discussion also considers the application systems used to deposit the suspension onto the ceramic substrate, since these methods can significantly influence the selection and performance of the suspending agent.