51314-3996-Evaluation of Surface Tolerant Offshore Maintenance Coating Systems and Surface Preparation

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Product Number: 51314-3996-SG

ISBN: 3996 2014 CP

Author: Di Yang

Publication Date: 2014

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Coating maintenance should progress at a rate such that items required to be coated are addressed at a faster rate than new items requiring coating repair arise. This has been a challenge on offshore facilities due to limitation on personnel offshore and the duration to paint with other simultaneous operations. Since the bulk of the time is spent on surface preparation and coating application if the time for these two activities could be reduced without compromising corrosion mitigation and coating life this will be of great benefit providing a higher success of being ahead of the painting program and thus reduces corrosion risks.Presently in offshore Gulf of Mexico Oil & Gas Production facilities the most common maintenance painting surface preparation techniques used are ultra high pressure water blasting/jetting power tools and in some cases abrasive blasting. The main maintenance protective coating systems that are used are 3 coat protective coating systems.The main objective of this study was to test six different “1” coat protective coating systems that could be applied on limited prepared surface [SSPC-SP-2] on test panels. These coating systems were tested in the laboratory to determine their performance compared to the regular 3 coat maintenance system.The secondary objective of this study was to perform different types of surface preparation techniques (hand tool power tool UHP abrasive blasting and wet abrasive blasting) and apply the same type of coating system on the on test panels to determine the added life if any from one surface preparation to the other. The testing procedures used and results are discussed in this paper.