Recently significant progress has been made in developing self-healing coating systems capable of healing even macroscopic defect sites (see e.g. [1-3]). The corrosion triggered release and transport of sufficient amounts of inhibitors and/or self-healing agents to the defect site is enabled by the delamination of the coating. This allows fast spreading of the trigger signal, such as change of pH or potential, into the coating and also fast transport of the released active agents along the delaminated interface. However, when corrosion in the defect site is successfully inhibited it is important that also at the delaminated interface corrosion is inhibited and adhesion between metal and the organic coating is re-established again. Our knowledge of how to do this is still limited. Recent progress on this topic will be presented and discussed.

[1] D. Crespy, K. Landfester, J. Fickert, and M. Rohwerder, Self-Healing Materials 273 (2016) 219-245.

[2] T.H. Tran , A. Vimalanandan , G.Genchev , J. Fickert , K. Landfester , D. Crespy , M.Rohwerder, Advanced Materials 27(25) (2015) 3825-3830.

[3] A. Vimalanandan, L.P. Lv, T.H. Tran, K. Landfester, D. Crespy, M. Rohwerder, Advanced Materials 25(48) (2013) 6980-6984.