CoatingsPro Magazine

JUL 2016

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 JULY 2016 39 slated to end by October 31, 2018, and the use of a home base in the players' parking lot outside the stadium has helped move the process along. A ll substrates, which were originally coated when the stadium was built between 2004 and 2006, are steel but differ- ent areas required different detail work. For instance, the first step of pressure washing varied between 3,000 and 5,000 psi (20.7–34.5 MPa). "W hat we've run into — this is pretty standard in corro- sion in our industry — is the substrates that are exposed to the elements, like the light towers and scoreboard structures, are more deteriorated than the structures that are inside and protected from sunlight and rain," McGraw explained. In the areas that are protected, the crew is using hand cleaning with power tools, such as DeWALT angle grinders, to achieve Society for Protective Coatings (SSPC) Surface Preparation (SP) 3. In the more exposed areas, though, the crew has needed a high psi pressure washer from Mi-T-M to remove rust and faking paint. Once prepped, all substrates are spot-primed to areas that need it. Te crew is using US Coatings MasticGrip 2500 The crew used three HAKI plat forms from Saf way for overhang canopies where they could roll the platform down the bases. Near home plate, where the canopy is a half octagon, the crew used stationar y scaffolding. To prep, the 6- to 30-person crew (depending on the task) hand cleaned the steel with power tools to achieve Society for Protective Coatings (SSPC) Surface Preparation (SP) 3. They pressure washed exposed areas. JOB AT A GLANCE PROJECT: Overcoat all structural steel found at the St. Louis Cardinals' Major League Baseball (MLB) stadium COATINGS CONTRACTOR: Thomas Industrial Coatings 2070 Hwy. Z Pevely, MO 63070 (636) 475-3500 www.thomasindcoatings.com SIZE OF CONTRACTOR: 250 employees SIZE OF CREW: 6–30 crew members, depending on the task PRIME CLIENT: St. Louis Cardinals 700 Clark St. St. Louis, MO 63102 (314) 345-9600 www.cardinals.com SUBSTRATE: Carbon steel CONDITION OF SUBSTRATE: Good SIZE OF JOB: ~1,300,000 sq. ft. (120,774.0 m²) DURATION: Over 5 years UNUSUAL FACTORS/CHALLENGES: » The awarded contract included a managed service package. » The crew worked with the coating manufacturer to come up with the right shade and gloss for the coating. » The installation had to be scheduled around the Cardinals' home games and other events at the stadium. MATERIALS/PROCESSES: » Used hand cleaning with power tools, such as DeWALT angle grinders, to achieve Society for Protective Coatings (SSPC) Surface Preparation (SP) 3 power tool cleaning in protected areas and Mi-T-M pressure washer in exposed areas » Spot primed areas that needed it with US Coatings MasticGrip 2500 High Solids Aluminum Mastic Epoxy at 3–6 mils (76.2–152.4 microns) » Brush and roll applied topcoat US Coatings MultiGrip 7000 XP Acrylic Siloxane Finish Coating at 2–4 mils (50.8–101.6 microns). This was applied in one layer for most areas and two for the more visible areas. SAFETY CONSIDERATIONS: » Used Safway's HAKI platform and scaffolding system to work at heights » Quarantined pathways below work areas » Wore full-face respirators when working in containment with electric heaters

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