Abstract: A self-healing coating, incorporating medium-sized microcapsules filled with a liquid formulation, repairs itself upon physical compromise. In one embodiment, a commercial primer is mixed with these microcapsules and applied. After the coating has cured, any physical compromise of the cured coating results in the microcapsules bursting to release the liquid, in turn filling and sealing the compromised volume of the coating. In applications where a product is used to provide corrosion protection, the liquid contains anti-corrosion material as well as suitable diluents and film-forming compounds. In a preferred embodiment, the microcapsules are provided separately to be mixed with commercial products during preparation for application of the coating. For example, if a paint formulation is known a priori, tailored microcapsules packaged separately from the paint and designed for use with the paint formulation, are wet mixed into the paint during preparation for application.

Abstract: A liquid self-healing coating, incorporating microcapsules filled with tailored repair formulations, repairs itself upon physical compromise after curing. In one embodiment, a commercially available paint primer is mixed with a pre-specified amount of these microcapsules. After the coating has cured on the substrate to which it is applied, any physical compromise of the cured coating results in the microcapsules bursting to release a liquid that fills and seals the compromised volume of the coating. In applications where paint is used to provide corrosion protection, the liquid contains anti-corrosion material as well as suitable diluents and film-forming compounds. In another embodiment, the microcapsules may be provided separately to enhance commercially available products.