Rheological behavior marked by an increase in viscosity with the increase of the velocity gradient.

In ceramics, dilating behaviors are unusual and they are basically avoided, since they are not suitable for ceramic production processes.

They may lead to problems during application, negatively affecting a good technical or aesthetic result. Since the viscosity value increases as the speed gets faster, a spray application could be very difficult or even impossible.

To better understand this behavior, we can have a look at the world of motorcycling or extreme sports. Today, in fact, there are on the market protective suits made with materials marked by dilating technical features: they are basically soft, allowing those who are wearing to easily move but, in case of an impact (that develops an increase of motion speed) they immediately harden, protecting from possible contusions.