The surface to be coated is thoroughly prepared by abrasive blasting to remove surface deposits, oxides, and minor pitting. Note that severe pitting and all sharp edges must be removed by grinding. All weld seams (circum. and longit.) will be ground and dye-penetrant performed. Thus insuring that no surface stress cracking is covered up by the coating process. Any base metal low areas (below minimum wall) that is discovered by third party N.D.E., will be welded and ground smooth. Thus restoring the vessel to a safe condition prior to the coating process.