F-Files: Mechanisms of Failure
Topcoating ethyl silicate inorganic zinc-rich primers too soon

From JPCL, September 2014

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Tagged categories: Coating failure; Failure analysis; Paint application; Primers; Quality Control; Topcoats; Zinc-rich (inorganic)

Comment from Gary OConnor, (1/20/2015, 8:22 AM)

This article brings to the forefront what we all know but ignore so often. Overcoating IOZ in the shop especially in the Northeast during winter months is a potential disaster when ignoring the necessary conditions for IOZ cure.


Comment from Tom Schwerdt, (1/21/2015, 8:20 AM)

Good article. For lab verification of cure, I prefer gas chromatography (GC)when there is enough sample available - place primer and water in a sealed vial, heat to ensure cure, check the liquid for ethanol.


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