A four phase plan used by a refinery to reduce atmospheric corrosion through the improvement of exterior coating protection is described. Included is a discussion of factors to be considered in setting up a maintenance painting program.

It was found that paint engineers will be concerned primarily with four matters: Selection of paint with respect to environmental severity, surface preparation, dry film thickness, and number of coats to be applied. It was found that the best combination of these factors must be determined by the engineer in order to ensure that the plant has adequate protection within the limits of economic practicability.

A plant specification standard prepared by an oil company is given.

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