CoatingsPro Magazine

MAY 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 MAY 2016 51 doubling the size of the crew, they pushed through and fnished repairing and painting that portion on May 7 th and opened the road on the 9 th . "Te funny thing is they cancelled the parade, so what was the point?" Kanellopulos said. But it helped them stay on track and keep moving forward! One Team, One Win As in any coatings job, particularly those at heights or in compli- cated areas, coordination is important. According to Charles Brown, area engineer for Greenman- Pedersen, Inc., providing services for the Maryland State Highway Administration's coatings division, this project was a team efort. "We had lots of diferent things going on: the Coast Guard had to be involved, actual painting and repair work done," he said. Tey'd even called in another contractor to repair some areas before the Manolis Painting crew got started, "so we didn't hold them up," he explained. "It was a big team efort." Part of that team efort was also in the safety arena. Te coatings crew used a suspended platform under the approach spans with heart-shaped hooks for the I-beams and corrugated metal for the foors. Te platform on the approach spans and the scafolding on the draw span all had rails, which meant that fall protection wasn't always necessary. A long with the completely sealed class 1A containment, all workers and passersby were kept safe. On Your Mark Once the draw span was completed, it was time for the crew to move onto the approach spans and expansion joints. Tose received the same surface prep and coating system, which started with the primer. To apply that, the crew wore hard hats, respirators, gloves, eye protection, coveralls, and steel-toed boots. Te greenish-gray primer was applied right after the blasting, so that the crew didn't " lose the steel," according to Kanellopulos. Next, each crew member grabbed a brush or roller and a bucket of the primer stripe coat, this time tinted red. Wearing head lamps for sight, they spread out into the crevices, climbing up, down, and around, to access all of the steel surfaces. Talk about a hard hat area! Tey brushed the stripe coat onto all The final two coats were an epoxy polyamide intermediate coat (also stripe coated) and an aliphatic polyurethane topcoat. The topcoat was spray applied to avoid leaving the bridge showing brush strokes. When blasting, the crew wore respiratory protection, helmets, and full body protection. When they were coating, the crew wore hard hats, respirators, gloves, eye protection, coveralls, and steel-toed boots. Personal protective equipment (PPE) was crucial. The project was initially primed with 3- to 5-mils (76.2–127.0 microns) of zinc after being blasted. The same material was used to brush and roll on a stripe coat. The project had several scheduling constraints, including a motorcycle parade planning to hit the bridge 50 days after the start date. "It was a big team effort," said Charles Brown, area engineer for Greenman- Pedersen, Inc. Bridge Recoat

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