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May 8 - May 14, 2016

What is the most important factor to determine in a failure investigation and why is it so?

Selected Answers

From Duane Cooper of BAE Systems Ship Repair on May 12, 2016:
Surface prep and dew point are the most important steps in preservation.

From Warren Brand of Chicago Corrosion Group on May 12, 2016:
The most important factor is to determine if one is required. Unless a failure analysis is going to be used for litigation purposes or to develop repair protocols, there's no point in doing one. I wrote a blog in November of 2015 on this topic, ( Just a few months ago, we were contacted by a large refinery wanting a failure analysis of a severely distressed coating system. After discussions, we recommended forgoing the failure analysis and, instead, developing a repair protocol, as the cause of the failure was irrelevant. From a technical perspective, if one determines a failure analysis is required, look for the most obvious cause first which, in most cases, is a problem with some issue with application. That is, look for the usual suspects: intercoat disbondment, solvent entrapment, poor surface prep, exceeding re-coat windows, environmental conditionsduring application, etc.

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Tagged categories: Asia Pacific; Coating failure; EMEA (Europe, Middle East and Africa); Failure analysis; Latin America; North America

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