JPCL November 2019

JPCL November 2019

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Development of a Test Method: Evaluating Nonskid Performance under Thermal Loading

by Colton Spicer, Cameron Miller, Jimmy Tagert and John Wegand, Naval Research Laboratory; and Dr. Erick Alley, Naval Surface Warfare Center

Military performance specification, MIL-PRF-24667, governs the vetting and qualification of nonskid systems for the Navy. When the current nonskid system was introduced in 1971, the primary focus was to develop a nonskid system durable enough to withstand extended periods of atmospheric exposure and mechanical damage from routine ship operations. However, as Navy technology has evolved and next-generation weapon systems have been deployed, high-temperature resistance has emerged as a new nonskid requirement for coating manufacturers when selecting raw materials for new formulations. The authors describe the NRL’s development of a new test method for evaluating temperature-resistance of new nonskid coating formulations.

A Corrosion Control Plan for Saint Lawrence Seaway Navigation Locks

by Rick Huntley, KTA-Tator, Inc.; and Dan Boich, St. Lawrence Seaway Management Corporation

Since its opening, the St. Lawrence Seaway has moved more than 2.5 billion metric tons of cargo with an estimated value of more than $375 billion. Authorities in Canada and the U.S. work together to protect the gates on the locks from corrosion in order to remain operable for decades to come. The authors explain the factors at play during coating selection—particularly critical as coatings must be installed in the winter and in a short period of time during scheduled outages.

There’s An Icebreaker In My Tank!

by Dr. Mike O’Donoghue and Vijay Datta, MS, International Paint LLC

Twenty-five years ago, an icebreaker coating primarily designed for the underwater hulls of ships was installed in the Canadian oil patch on the floors of many 150-foot-diameter aboveground storage tanks owned and operated by Enbridge, a Calgary, Alberta-based oil storage company and distributor of over three million barrels of crude oil a day. This article discusses the performance and condition of those tank linings, now decades old.

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