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COATINGSPRO MARCH 2017 49 W hen it wasn't, hoisting A lpine's heav y equipment onto the platform was out of the question. "We had to build cradles to spread out the loads under our heav y gear," said Ofsharick. "e owners were worried about the platform's ability to handle that much weight. We also tied down our equipment so that if heav y winds or waves came up, things wouldn't get knocked off the platform." With the project finally staged, the A lpine crew was ready to take the plunge! Way Too Salty With the desalinization unit ready to feed their 1,000-gallon (3,785.4 L) tank, the crew rigged up their NLB 225 Series Ultra High Pressure (UHP) water unit with a five-jet offset head and prepared to prep the top deck. Attacking the top deck first would allow Island International time to erect a QuikDeck scaffold system by Safway beneath the platform and install a pipeline pig launcher topside. T he A lpine crew installed a fitting between the desali- nization unit and tank to add CHLOR*R ID soluble salt The five-person crew had to rid the corroded steel of loose paint and soluble salts before they could recoat. The goal was to achieve NACE WJ-4/Societ y for Protective Coating s (SSPC) Sur face Preparation (SP) WJ-4 for waterjetting. To prep, the crew used ultra-high pressure waterjetting. Safety was of the utmost importance on this project. They wore TurtleSkin blast gaiters and gloves while operating the UHP waterjetting rig. JOB AT A GLANCE PROJECT: Recoated an offshore oil transfer station in Long Island Sound, New York COATINGS CONTRACTOR: Alpine Painting & Sandblasting Contractors 17 Florida Ave. Paterson, NJ 07503 (866) 596-0349 www.alpinepainting.com SIZE OF CONTRACTOR: 100+ coatings professionals available for peak demand SIZE OF CREW: 5 crew members PRIME CLIENT: United Metro Energy Corp. 500 Kingsland Ave. Brooklyn, NY 11222 (718) 383-1400 www.unitedmetroenergy.com SUBSTRATE: 1960s-era carbon steel platform CONDITION OF SUBSTRATE: Moderate to heavy corrosion SIZE OF JOB: 26,500 sq. ft. (2,461.9 m²) DURATION: 3 months UNUSUAL FACTORS/CHALLENGES: » The platform is situated about a mile (1.6 km) from shore. » Stormy weather, offloading of tankers, and high seas periodically halted work and limited accessibility. » A fresh water source was required for ultra-high pressure (UHP) rig. MATERIALS/PROCESSES: » Used UHP waterjetting to achieve NACE WJ-4/Society for Protective Coatings (SSPC) Surface Preparation (SP) WJ-4 standard; added CHLOR*RID to water to remove soluble salts; tested with CHLOR*TEST kits » Brush and roller applied spot primer of Carboline's Rustbond at 1-1.5 mils (25.4-38.1 microns) wet film thickness (WFT) to pipes, valves, bollards, and equipment bases; topped with Carbothane 133LH at 3-6 mils (76.2- 152.4 microns) WFT » Spray applied a prime coat of Carboguard 690 to the top deck at 6-10 mils (152.4-254 microns) WFT in a single pass; topped with Carboguard 690 at 7-11 mils (177.8-279.4 microns) WFT » Spray applied two coats of Carboguard 690 GF to the underdeck to achieve a total of 24-42 mils (609.6-1,066.8 microns) WFT » Spray applied spot prime and full layer of Carbomastic 615 at 7-14 mils (177.8-355.6 microns) WFT each SAFETY CONSIDERATIONS: » Wore hard hats, safety glasses, steel-toed boots, and respirators, as needed » Wore TurtleSkin blast gaiters and gloves while operating the UHP rig » Wore harnesses and used QuikDeck during underdeck work