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Abstract Micro-capsules are prepared with two basic forms, the 1 st form is covered , .~ by one shell made of urea-formaldehyde, the 2nd one is covered by two shells (the first shell is urea-formaldehyde and the second shell made of poly-urethane ). Both forms, the first and the second of the Micro-capsules are filled by two types which are corrosion inhibitors (corr A and corr B). Some tests were applied and discussed like: optical scanning microscope was used to confirm the formation of capsules, microcapsules were weighed ill order to measure the shrinking rate, thermal gravimetric analysis was applied to find the rate of stability under heating of the micro-capsules; Intra-red spectroscopy was applied to make sure of the formation of shells of the micro-capsules and physical properties were monitored weekly to confirm the stability of the micro-capsules. The self-healing properties ar~ focused on as: micro-capsules of the one and two shells were incorporated with epoxy paint (which used as a protective coating for, |