CoatingsPro Magazine

MAR 2017

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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COATINGSPRO MARCH 2017 51 then applied a second coat of Carboguard 690 at 7 to 11 mils (177.8‒279.4 microns) WFT to complete the top deck work. Flammable Liquids Before tackling the tricky underside of the deck support struc- ture, Ofsharick checked the project's overall progress. Bad weather had set them back more than originally anticipated by creating production delays and access issues for men and equip- ment. But A lpine's been around more than four decades, so it's not surprising they figured out a way to stay productive when the 1,000-foot (304.8 m) mega tankers docked. Since these ships carried flammable liquids, once offload- ing commenced, activities were understandably restricted. Depending on the cargo being offloaded, sometimes the A lpine crew couldn't work at all. W hen they were allowed to work, they still couldn't work near the tankers. But never, while any tanker was unloading, could they operate gear capable of producing sparks: no electric devices, no paint mixers, and definitely no angle grinders. Hey, if a $100 million tanker were to suddenly erupt into a massive fireball, a simple "oops" won't cut it! Here's how A lpine stayed productive when conditions restricted their scope of work: "We set aside work on railings, toe boards, pipes, valves, bollards, and equipment bases for fuel offloading days," said Ofsharick. "By doing so, we could stay out of the way and not lose too much production." Ready to Dive W hen the tankers weren't docked, the crew dove into the under- deck portion of the project. After UHP waterjetting, NACE inspector Plokarz again brought out his CHLOR*TEST kits and made sure soluble salt levels were below specs. For this area, specs called for a glass-flake filled version of Carboguard 690, Carboguard 690 GF. In addition to sharing many properties with Carboguard 690, the glass flake reinforce- ment enhances film strength, impact resistance, and barrier properties, according to the Carboline product data sheet. Mixing the three-component 690 GF begins by separately stirring parts A (4 gallons, 15. L) and B (1 gallon, 3.8 L), combin- ing and mixing the two sides, then adding and mixing 9 pounds (4.1 kg) of glass flake. e crew used their airless spray rig to lay down two coats of Carboguard 690 GF, each at 12 to 21 mils (304.8‒533.4 microns) WFT, to achieve a total of 24 to 42 mils (609.6‒1,066.8 microns) WFT. e work went reasonably well, and whenever a tanker tied up, the men moved to the top deck where they spot applied with brush and roller a single coat of Carboline Offshore Oil Crew axalta.us/powder 800-247-3886 Capable of operating at temperatures up to 200 o C Exhibits extreme corrosion protection against high levels of H 2 S and CO 2 Provides superior corrosion protection in severe downhole environments Nap-Gard ® HIGH TEMPERATURE INTERNAL PIPE COATINGS Wr i te in Re ad e r In q u ir y #368

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