Factors Controlling Oxygen Permeation

In addition, the usefulness of each mechanism depends on the service environment. Guruviah studied corrosion of coated panels under various accelerated test methods with and without sodium chloride (salt). Where salt was present, electrolytic resistance of the coatings was the dominant factor in predicting performance. However, in a generally similar method with no sodium chloride, oxygen permeation was the rate-controlling factor for the same coatings [2]. 

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