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October 9 - October 15, 2016

What is the best way to repair localized coating breakdown on steel?

Selected Answers

From willem van Gent of corrcon Marine on October 18, 2016:
According to my experiance, the best repair of localized coating breakdown is vacuum blasting and feathering of the edges, following by application of  an anti-corrosive primer and the  coating system of the structure.

From Terry Laing of Liquid Corrosion Control Inc. on October 14, 2016:
Depending on exact site and locale, you may be able to use a  fluid-applied, thin-film corrosion inhibitor.

From Warren Brand of Chicago Corrosion Group on October 12, 2016:
This is, perhaps, one of the most complex questions we come across on a regular basis. A comprehensive answer could fill a small book. The short answer is to hire an independent, vendor-neutral, professional corrosion-mitigation firm.

From Eric Williams of Fought & Co. Inc. on October 11, 2016:
The question is ambiguious at best. Utilize SSPC surface prep standards suited for the intended service of the coating, Apply the coating to the manufactures Product Data Sheet, always a fail-safe method to ensure repair longevity.

From Steve Brunner of WPC Technologies on October 10, 2016:
To best answer this question, we need to know the corrosive environment and the the area of damage. I will make an assumption there will be salts involved and a small area. In this case, hand-sanding the bare area and surrounding paint is best. For added benefit, the exposed steel can be treated with a pure water wash or a specialty, proprietary chemical  to neutralize or remove any soluble salts.

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

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