Dip-Coating of a Carrier
Manufacturers working with dip coating are often faced with the challenge of securing a consistent and even layer of the coating, which in turn relies completely on the rheology of the coating material. When RheoStream® is used for continuous monitoring of the coating rheology, the material can be constantly adjusted to secure the coating quality and avoid waste of finished product.
The data shown below are taken from one day at a factory trial with RheoStream®.
The factory manufactures a solid product, consisting of a substrate (carrier) material coated with a pigment containing solvent based paint-like coating. The final product quality relies critically on the coating, which in turn relies critically on the rheology.
Today, the factory takes out samples manually for control in a nearby lab, using a rotary viscometer to determine plastic viscosity and yield stress, using a Bingham model approximation.