CoatingsPro Magazine

JUL 2013

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

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Never AgAin The CAse of The shoddy Job By Lee Brooks C oating above-ground pipelines with a thin-film epoxy system can be a fairly common procedure for many experienced contractors. The metal substrate needs to be abrasive-blasted, cleaned, and primed before the system can be finished with an appropriate topcoat. So what could have happened, then, to cause this run-of-the-mill job to go haywire? When the weld seams on the pipe stands started rusting only one month after installation, the client, the contractor, heck, everyone, knew something was wrong. a JoB Doneā€¦ WeLL, MayBe not A bulk storage facility owner located in an environmentally sensitive area suffered an incident, which prompted a thorough review of the conditions of the entire pipeline. He opted to replace the half-mile (0.8 km) pipeline from the loading dock to the tank farm above ground. The facility was located in one of the most severe corrosive environments in the United States. And one of 68 coatingsPro g July 2013 Photos courtesy of the author the more scenic assignments for corrosion control professionals. Faced with an unexpected capital improvement project, one of the owner's top priorities was to optimize his budget while not sacrificing the best corrosion protection. The owner was leery of common problems with quality control and associated costs, and it helped him to know that the preferred painting contractor for the facility had an excellent track record of work meeting performance expectations. That is why the owner of the facility called in a company with 20 years of experience (we'll call the company "Perfect Painters" and the owner "Ben"). Above Only about a month after completing an above-ground pipeline recoat, the owner of the facility noticed serious problems with the weld seams. What could have possibly gone wrong? Perfect Painters responded by submitting a two-phase proposal, which the owner accepted. First the new steel would be delivered to the contractor's facility for phase one. The project schedule included daily sling psychrometer tests to ensure that atmospheric conditions were suitable. Next, a two-man crew performed a National Association of Corrosion Engineer (NACE) No. 2/Society of Protective Coatings (SSPC)-SP-10: faced with an unexpected capital improvement project, one of the owner's top priorities was to optimize his budget while not sacrificing the best corrosion protection.

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