CoatingsPro Magazine

MAY 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 MAY 2015 71 The crew then applied the protective coating system: Raven 155 waterborne primer on the concrete surfaces and then Raven 512 polyurea to the walls, floor, pipe stands, and roof overhang in varying thicknesses. containers to expand its business and perform more coatings and linings. Prep It! Te job started January 3, 2015. Twelve employees total from Lewis Concrete Restoration Corporation worked on the job. Five were doing metal erection, and seven were spraying. Te team members built three of the containment walls, but they " had to leave one end open so they could set all their pumps and do all their piping before they could erect the fnal wall," Hofman said. Te job lasted in total one month, but it only required eight days of work to do the containment and only two total days of spraying. T he crew star ted w ith a br ush blast on the ga lvanized meta l. T hey br ush blasted for a 3 -mi l (76 microns) prof i le to create an adequate sur face prof i le to bond to. On the concrete slabs, they used Hotsy brand 5,000 psi (35 MPa) water blast- ers w ith a 0 deg ree osci l lating tip to achieve Inter nationa l While spraying the coatings, the crew was sure to wear 3M half-face masks with organic filters. They also wore steel-toed boots, goggles, safety glasses, and ear plugs, and they used H 2 S monitors. JOB AT A GLANCE PROJECT: Install a secondary containment wall and apply a monolithic polyurea liner as part of salt water disposal site on an oil field COATINGS CONTRACTOR: Lewis Concrete Restoration Corporation 405 Ware Dr. Buda, TX 78610 (512) 983-3283 www.lewisconcreterestoration.com SIZE OF CONTRACTOR: 28 employees SIZE OF CREW: 12 crew members PRIME CLIENT: Texas oil company, which wishes to remain unnamed SUBSTRATE: Galvanized 12 gauge steel & concrete CONDITION OF SUBSTRATE: New SIZE OF JOB: 8,739 sq. ft. (812 m 2 ) DURATION: 1 month UNUSUAL FACTORS/CHALLENGES: » 112 total pipe stands meant geothermal fabric had to be cut and shaped at different angles » Weather could ruin the geothermal fabric and meant the job would have to be started over MATERIALS/PROCESSES: » Brush and abrasive blasted metal and concrete » Laid down 12-ounce (0.34 kg) non-woven geotextile fabric » Spray-applied Raven 155 waterborne primer on the concrete surfaces » Spray-applied Raven 512 polyurea to the walls, floor, pipe stands, and roof overhang at various thicknesses SAFETY CONSIDERATIONS: » Wore 3M half-face masks with organic filters for spray application » Wore steel-toed boots, goggles, safety glasses, and ear plugs, and used H 2 S monitors

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