Paint coatings continued process limitations

The original electrical resistance between two electrodes Immersed in the coating bath is comparatively low, but the resistance rises during the deposition process to 100 and more times its original value, with a related drop in current flow. Thus, paint is deposited quickly until all bare metal areas are covered. The film build is self-limiting areas of thinner film offer less resistance against current flow, so deposition continues there until the film thickness has evened out. 

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