by Mike Manetta, Sherwin-Williams Protective & Marine
As crude oil production has increased in North America, more oil has been shipped by rail over longer distances to refineries and processors. This increased hauling need combined with a variety of other factors has created new implications for lining rail tank car interiors. The author will outline steps that owners, operators and applicators can take to ensure that linings are applied properly to prolong lining service lives and reduce the total cost of tank car ownership.
by Michael Kibler and Patrick Cassidy, Elzly Technology Corp.; and and Jay Ong, Naval Surface Warfare Center, Carderock
For years, the causes and mechanisms of blistering have been studied to determine its effects on coating performance and underlying substrates. The authors present results of a recent U.S. Navy study in which it was determined that the substrate below a blister may be more prone to pitting in certain exposures, suggesting a need for a better understanding of how to evaluate blistered coatings when considering repairs.
Plural-component coatings have historically presented challenges for contractors, with significant material, time and labor costs tied to mixing two or more components prior to application. This article describes how switching from hand mixing (or "hot potting") two-component materials to spraying them with plural-component equipment can significantly reduce costs and improve performance for contractors.