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Rick Huntley

hot dip galvanizing

Hot Dip Galvanizing Versus Zinc Rich Primers – Which Protects Better?

There are several methods by which a coating can protect steel from corrosion. One of the most effective methods is by providing galvanic protection.  Galvanic protection works by covering the steel surface with a metal that will preferentially corrode instead of the steel when the surface comes in contact with an electrolyte, usually water. All …

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Coating Failures/Disputes: Preparing for Litigation

Failure analysis of coatings and linings often involves systematic analysis and complex engineering logic. There are also many human factors involved. Each coating application involves at least three distinct parties often with different motives and opinions. These parties include the owner of the structure or facility that was painted, the contractor firm that prepared the …

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Coating Performance

What You See Isn’t Always What You Get: The Problem with Aesthetics

As a group, coating professionals who deal mainly with industrial coatings generally focus on coating performance — the majority of concern being focusing on a coating’s ability to protect the substrate from the environment — and in the case of tank linings, to protect the tank contents from the substrate. Although these are certainly important …

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When A Good Idea Goes Bad

An American tobacco company owned a number of large buildings, essentially steel-framed warehouses covered with corrugated galvanized steel panels, at one of its facilities. The company used the warehouse buildings for the fumigation of the tobacco, during which the entire interior of the building is filled with a gaseous insecticide that kills tobacco-damaging insects. Unfortunately, …

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The case of…failure in a filter house

Photo By Denna Jones How long does it take for a premature coating failure to occur? The likelihood of failure is high shortly after application: from days to perhaps a year. In this month’s Case from the F-Files, a coating delaminated shortly after installation of the coated assemblies. Repairs were made, and the units went …

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