CoatingsPro Magazine

NOV 2015

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 NOVEMBER 2015 41 Te substrates to coat were steel, galvanized metal, and concrete, and most substrate conditions were used, meaning the crew had to deal with rust, dirt, and peeling paint. Capital Painting & Decorating, which has 15 total employees, used a crew of 5 to 6 for this job. Tey started work in the spring of 2015 and were on site for about two months, Miller said. As for the jobsite, it was vast and spread out. Te power plant itself covered 10 acres (40,468.6 m²) and had long lengths of pipelines, staircases, tanks, steel buildings, transformers, and steel foors, Miller said. Tere was a lot to cover, but the biggest part of the job was coating the exhaust stacks and water storage tanks. On the exhaust stacks, the crew frst used an angle grinder with an extra coarse abrasive wire wheel to prepare the substrate for coating. When the stacks were clean and ready, the crew put down a Sherwin-Williams Heat-Flex High Temp 1000 silicone coating in two coats at a total thickness of approximately three mils (76.2 microns). Tey hand painted the coating with rollers and brushes, opting to use Purdy paint brushes, Wooster roller covers, Purdy White Dove roller covers, and 3M masking tapes. On the gas and water storage tanks and pipelines, the crew frst put down a primer, using Sherwin-Williams Macropoxy 646. Te primer was applied in one coat at a thickness of approximately 10 mils (254.0 microns). Ten the crew applied two coats of Sherwin-Williams Acrolon 218 HS for a total thick- ness of approximately eight mils (203.2 microns). For this part of the job, they also hand painted the coating with Purdy and Wooster rollers and brushes. Ten they moved on to the structural steel and steel buildings where they put down Sherwin-Williams Kem Bond as a primer, followed by intermediate and top coats of To complete the job, the 5- to 6-person coatings crew wore hard-toed boots, 3M respirator masks while spraying, and hard hats and body coveralls. They also wore ear, eye, hand, leg, and head protection. JOB AT A GLANCE PROJECT: Apply industrial coatings on storage tanks, pipelines, and other structural steel at a Midwestern natural gas peaking power plant COATINGS CONTRACTOR: Capital Painting & Decorating, Inc. 2429 Roxbury Lane Montgomery, IL 60538 (630) 747-6729 www.capitalpaintinginc.com SIZE OF CONTRACTOR: 15 people SIZE OF CREW: 5–6 crew members PRIME CLIENT: Natural gas peaker power plant that wishes to remain unnamed SUBSTRATE: Mostly steel and galvanized metal CONDITION OF SUBSTRATE: Used SIZE OF JOB: Various throughout the 10-acre (40,468.6 m²) power plant DURATION: 2 months UNUSUAL FACTORS/CHALLENGES: » The job had to be done in phases with tight deadlines, so the peaker plant could continue supplying power when needed. » Excess humidity meant work couldn't be done in the mornings. » A tornado forced the crew to evacuate to a shelter. MATERIALS/PROCESSES: » Used an angle grinder on the substrate and prepare it for coating » On the exhaust stacks, applied a Sherwin-Williams Heat-Flex High Temp 1000 silicone coating in two coats at a total thickness of approximately 3 mils (76.2 microns) » On the gas and water storage tanks and pipelines, put down Sherwin-Williams Macropoxy 646 primer in one coat at a thickness of approximately 10 mils (254.0 microns) and applied two coats of Sherwin-Williams Acrolon 218 HS for a total thickness of approximately 8 mils (203.2 microns) » On the structural steel and steel buildings, put down Sherwin-Williams Kem Bond as a primer in one coat at approximately 5 mils (127.0 microns) followed by Sherwin-Williams Pro Industrial Urethane Alkyd Enamel in two coats with a total thickness of approximately 7 mils (177.8 microns) » On the parking lot striping, applied Sherwin-Williams ProPark in two coats at a total thickness of approximately 15 mils (381.0 microns) SAFETY CONSIDERATIONS: » Wore hard-toed boots at all times, as well as ear, eye, hand, leg, head, and arm protection » Wore 3M respirator masks while spraying » Used hard hats and body coveralls and put on Kevlar sleeves

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