Porcelain Casting Slips Formulated with Waste Glass

In this work, it was investigated as to what happens when waste glass is introduced into the composition of a ceramic body in an industrial slip‐casting process. For pressed products, such as tiles and bricks, the use of waste glass is sufficiently simple, but when used for slip‐casting products, such as china and porcelains, the presence of glass destabilizes the slip. A better stabilization of the casting slip was achieved with an organic deflocculant instead of sodium silicate. Therefore, the factors that determine the success or the failure of a deflocculant were analyzed, such as pH, ξ potential, viscosity, and thixotropy.