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46 AUGUST 2017 MATERIALS PERFORMANCE NACE INTERNATIONAL: VOL. 56, NO. 8 COATINGS & LININGS ESSENTIALS Continued f rom page 44 "After that, everything got cleaned up," says Coatings Supervisor Benny Briones. ey used vacuums for any spent slag or other debris and then sent the quality assurance (QA) team through. To keep QA, a foreign material exclusion team came in every four hours while the blasters were on break to inspect and repair any damaged wire protections. "And then we'd roll into painting," Briones says. With four sprayers and 200 ft (61 m) of line for each, the paint crew applied 3 to 4 mils (76 to 102 μ m) of green primer to the steel substrates. At night, the crew reached 12 people and by day it hit about eight to complete touchups. Once the primer was down, the crew covered the floors with paper, which would be receiving a special antiskid coating later. e coating systems also varied in type and color depending on the area of the ship. e bulkheads and overheads, for ex- ample, received 5 to 6 mils (127 to 152 μ m) of marine epoxy in gray. en a stripe coat was applied by hand as well as another 5- to 6-mil (127 to 152 μ m) coat of the same coat- ing in an off-white color. at was topped with a high-solids polyurethane at 2 to 3 mils (51 to 76 μ m). When it was time to coat the decks, the eight-person antiskid crew came in to work. ey applied the coating with phenolic roll- ers: an anticorrosive low-VOC metal primer in haze gray at 4 to 5 mils (102 to 127 μ m), followed by a heavy-duty two-component anti-slip epoxy coating with Kevlar ® in gray and safety yellow at 40 ft 2 /gal (1 m 2 /L). e aggregate used for the antiskid properties was integrated into the coating. Another coating was used in the boat pockets that held the rescue ships as well as the marine evacuation system rescue slide areas. ere, another coatings crew—from J. Calman Industries (Lynden, Washing- ton)—applied two polyurea coatings: one at 80 to 100 mils (2,032 to 2,540 μ m) and one at 10 to 20 mils (254 to 508 μ m). roughout the coating application, Fairhaven Shipyard relied on QA after every layer as well as proper safety gear. Safety gear included full-face masks, hard hats, Tyvek ® suits, and latex gloves. ey also used wet film thickness gauges to ensure accuracy. Between the coordination and materi- als, the scope of work on this project cer- tainly gave the shipyard a run for its money. According to Lockwood, the crews "moved around" to allow the various crews to work simultaneously. "We'd blast really big areas, and then when we got that area blasted out and accepted by QA and the customer, the blast crew would take their equipment and move to another zone and the paint crew would move in," he says. With 125 crew members at the peak of the project, it was no wonder Briones relied on a production meeting at the start of every day. at allowed coordination to be clear between each of the different crews. "We had a real challenge with materials because nobody had recently seen a job For more than a decade, HoldTight ® 102 salt remover/f lash rust preventer has set the standard of per formance worldwide. www.holdtight .com | info@holdtight .com NO SALT. NO RUST. ONE STEP. Recommended industr y-wide