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 63 T he inspector did that using a mil gage from DeFelsko to measure the dr y film thickness of the coating applied across the substrate. "Once we got the go -a head, we d id an SP-1 on the sur face of the deck w ith a lcohol to remove the dust," Era zo ex plained. "Basica l ly, we applied a lcohol on a rag and w iped it to c lean up a l l the dust that may have fa l len on the deck and the pr imer." T he next steps of the coating system were unique to the specific areas on the deck. For areas where water would run, the crew created what are called "water ways." On the landing deck, that was around the perimeter of the non-skid, also called anti-slip, coating system. T he crew used painter's tape from 3M to mark off and protect those areas. To the rest of the deck, uncovered, the crew rolled out the workhorse of this system: American Safety 's epoxy non-skid coating, MS -400G. Again wearing respirators and coveralls, the crew mixed the non-skid materials with a pneumatic drill. " The The crew then set up the steel and plastic containment. Once covered, they could move onto the surface prep portion of the job, completed using deck crawlers, blasters, and hand tools. The coating system included primer, non-skid, topcoat, and Visual Landing Aid (VL A) markings. The crew applied the coatings using sprayer s and roller s , depending on the layer, and wore full-face respirators and Tyvek coveralls while coating. JOB AT A GLANCE PROJECT: Recoat the helicopter landing deck with non-skid materials and visual landing aids on the USCGC Midgett COATINGS CONTRACTOR: All-Star Cleaning & Preservation, Inc. 1215 Charleston Beach Rd. Bremerton, WA 98312 (360) 405-0868 www.allstarshippainters.com SIZE OF CONTRACTOR: 20 employees SIZE OF CREW: 3-7 crew members PRIME CLIENT: Federal Marine and Defense, LLC 8000 Fifth Ave. South Seattle, WA 98108 (206) 322-5529 www.fedmarine.com SUBSTRATE: Steel CONDITION OF SUBSTRATE: Weathered SIZE OF JOB: 2,912 sq. ft. (270.5 m²) DURATION: 9 days UNUSUAL FACTORS/CHALLENGES: » The Coast Guard's inspector had to approve of various stages throughout the process. » Another crew working on board leaked water onto the landing deck, which All-Star handled. MATERIALS/PROCESSES: » Pressure washed the deck per Society for Protective Coatings (SSPC) Surface Preparation (SP) 1: Solvent Cleaning » Built steel and heat-shrunk plastic containment » Used deck crawlers, blasters, and hand tools to profile the substrate » Spray applied American Safety Technologies' MS-7CZ primer at ~6 mils (152.4 microns); confirmed with dry film thickness gage » Marked off "water ways" with 3M tape » Mixed and rolled out MS-400G non-skid coating » Removed 3M tape and then top-coated the water ways with MS-200 Deck Gray using brushes and rollers at 2-3 mils (50.8-76.2 microns) » Sketched and roller applied Visual Landing Aid (VLA) markings with MS-200 White SAFETY CONSIDERATIONS: » Wore rain gear and steel-toed rubber boots while pressure washing » Wore full-face respirators with volatile organic compound (VOC) cartridges and Tyvek coveralls when applying the coatings

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