Comparison of Coating System Service Life Based on Type of Primer, Number of Coats, and Surface Preparation Method

摘要

This paper provides an objective review of the service life of high performance industrial coating systems considering the type of primer, number of coats and method of surface preparation. The differences in primer type primarily addresses coating systems with zinc rich versus non-zinc rich coatings. The number of coats in a coating system focuses on the performance of two versus three coat systems. Additionally, the review looks at how the method of surface preparation affects longevity of the coating system. The surface preparation comparisons are power tool cleaning for coating system rehabilitation versus abrasive blast cleaning for coating system replacement. Included in the review are comparisons of installation and life cycle costs based on a suggested maintenance painting sequence. The review assumes field application for all coating operations.