Evaluating Material Loss of Steel Under Protective Coatings in Marine Environments

From JPCL, April 2018

By Patrick Cassidy and James A. Ellor, P.E., Elzly Technology Corporation; and John Wegand, James Martin, Paul Slebodnick and James Tagert, U.S. Naval Research Laboratory

Over the past 20 years, the U.S. Navy has implemented the use of advanced ultra-high-solids (UHS) coatings for the protection of ship tanks and voids to extend the life of tank coatings. In areas of breakdown, the maintenance community needs a suitable touch-up and repair coating and as part of this ongoing effort, the Navy sought methods to improve basic coating test methods to better assess repair coating performance. This article describes this testing, the goal of which is to project greater than 10 years of service life....


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Tagged categories: Blistering; Coating Materials; Edge-retentive; Epoxy; Laboratory testing; Maintenance coating work; Maintenance programs; Marine; Patrick Cassidy; Surface-tolerant coatings; U.S. Navy

Comment from David Zuskin, (5/21/2018, 12:17 PM)

"The surface salt readings before application of the repair material ranged from 140-to-218 µS/in, with an average of 185 µS/in". Conductivity of a surface is normally measured in µS/cm, not µS/in.


Comment from Patrick Cassidy, (5/23/2018, 1:32 PM)

Dave, you are correct. This was a typo from the editing stage.


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