INTRODUCTION
To be able to offer a wide range of color for coating, different
type of pigment are used. To insure a good cohesion between
the different components and so optimize the properties of
the coating in term of viscosity, polymers are added to the
suspension. The aim of the polymer is to insure a good
thixotropy (viscous at rest and fluid under stress) and insure a
good adhesion to the support.
The concentration of polymer directly affects the stability and
the viscosity of the formulations, consequently by adjusting
the concentration, the thixotropy and the stability can be
optimized.
The Turbiscan technology enables to monitor the stability of
these dispersions as a function of the polymer concentration.