Though the construction of Ul-jin Nuclear Power Plants Units 3&4 were built as Korean standard Nuclear Power Plants(KSNP) in 1998, the production and design independency of nuclear coatings were carried out in the late of 1980s beginning with Yong-gwang 3&4 in accordance with the national policies to utilize local technologies in Korea. Since then, the quality control for the design and construction of nuclear coatings has been performed using local technologies and materials. However, it appears that the quality control levels in the operating Nuclear Power Plants have not reached such levels applied to KSNP's construction stage. The importance of quality control of nuclear coatings has being issued being recognized as an important safety factor in the operating NPPs. The Reg. Guide 1.54, Rev.1~([1]) which has been revised in 2000 requires establishing the coating inspector's education and training program, coating personnel's qualification and certification procedures, the repair-ability test procedures, the coating history survey for the coating condition's monitoring and assessment for maintaining the in-service integrity of the nuclear coating. Therefore, nuclear coating industry in Korea has to make additional activities to improve quality of the in-serve nuclear coatings.
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