Advanced weldable primers are investigated concerning their formability and self-repair properties.
Microscopic and electrochemical investigations are combined with Finite Element Simulation of the degree of forming. Based on the fundamental understanding of the influence of the forming process on the corrosion properties, new composite coatings are developed that show significantly higher corrosion protection than the current coatings.
This will be achieved by the development of new flexible binder systems, the incorporation of corrosion inhibiting pigments that show self-healing properties and the incorporation of metal-alloy conducting particles. The results will further promote weldable primer coated steel sheets in the automotive production.