CoatingsPro Magazine

MAR 2016

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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40 MARCH 2016 COATINGSPROMAG.COM and behind the various pumps and heav y machinery. "It was very difcult to work around the massive equipment. Tis area of the ship is built to house equipment, not people," said Harnage with a laugh. Because the spaces were so small and hard to access, the crew used hand tools and scrapers for all prep work around the equipment, and they brush and roller applied the Ecodur material at an approximate thickness of 50 mils (1,270.0 microns). Flooding on the Fantail While coating application in small spaces is certainly challenging, the biggest obstacle for the crew came in the form of water — lots of water. Just as the team returned for their fnal touch-ups and coating application, a routine test of the pumps on the ship went horribly awry. Te back fantail was fooded with about fve to six inches (127.0–152.4 mm) of standing water on the foor. "We had fnished the prep work on the back fantail and were only 10 to 15 minutes away from mixing the material for the fnal coating application. Te scheduling was incredibly tight as the ship was due to leave the dock in less than two days. Tere was water on the foor and absolutely no way to apply the Ecodur coating in these conditions. Water on the substrate is one of the worst things for coating application; the substrate needs to be dry. Ecodur can tolerate some fash rust — some old coating that wasn't quite removed — but not water," said Harnage. With the clock ticking — the ship was set to leave in about 36 hours — the ship's crew tried to remove the water on the back fantail by any means necessary. It was determined that the water could not be pumped out in time, and everyone was getting desperate to fnd a solution. It was fnally decided that the captain would list the ship to the port side so that all the water was on one side of the ship. "We cleaned the area and applied the Ecodur. Within one hour it was cured enough to withstand exposure to water. Te ship was then listed to the starboard side, and we repeated the process. Tis was only successful because of how quickly Ecodur cures," stated Harnage. Te Aquablocx crew fnished the application on the starboard side at 7 a.m. Te ship set sail at 10 a.m. Talk about a close call! According to Harnage, there were two other factors that contributed to the ultimate success of the coating application in such undesirable conditions. Te fact that Ecodur contains no volatile organic compounds (VOCs) and no emissions are produced during the application process meant that the ship's crew could continue loading the vessel for its three-to-six- month journey at sea while the Aquablocx team worked. It also turned out to be a silver lining that the crew had not yet mixed the coating prior to the food, as there was not enough material onsite to do the job twice. Keeping an Eye Out Te back fantail food notwithstanding, moisture was actually something that the crew dealt with throughout the duration of the project. As the back fantail is an open area exposed to the elements, anytime a storm blew through the coastal area of Louisiana, work in that area came to a halt. In the interior equipment spaces, the crew used kerosene heaters to dehumid- ify the ambient air. "Even when it wasn't raining, the relative humidity was pretty high, so we needed to dry the air prior to One of the biggest challenges occurred during a test: The back fantail flooded! Luckily, the captain listed the ship from side to side to move the water and allow the application of the final coating. Once all of the equipment was installed onto the ship, the crew came back on board and started again. They prepped and coated the same way, but this time they brushed and rolled the coating. It was a feat in scheduling, but with a determined crew such as this one, they were able to finish any final touchups just in time for the ship to leave port. Oil & Gas Coatings

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