CoatingsPro Magazine

SEP 2018

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 SEPTEMBER 2018 51 curing times of ~30 minutes, multiple layers were critical. "We needed the primer penetrating into the slabs," Osborn said. "Had we put it all on in one step, we would 've gotten pinholes. With a thinner first coat, and then letting it cure, it allows the concrete to outgas." e second coat had the Sikadur 507 fine aggregate broadcast to near rejection, which provided both a chemical and mechanical bond, the contractor explained. Next up was applying the grey Sikalastic 841 ST liquid polyurea, installed at 85–88 mils (2,159–2,235 microns) WFT. With plastic liners protecting against overspray, crew members used Gusmer H3500 spray equipment (owned by Graco) with a Graco Probler P2 gun with a mixing chamber insert and round tip. "We didn't want gray polyurea overspray on anything white," Osborn said. Hours after applying the polyurea, the white Sika Permacor-2230 VHS went on in two coats as the acrylic polyure- thane topcoat. Like the primer, the topcoat was applied in two passes using 18-inch (45.7 cm) and 9-inch (22.9 cm) phenolic core roller covers. e first coat was applied at an average of 8 mils (203.2 microns) WFT, while the second went down at an average of 6 mils (152.4 microns) WFT with 15–18 percent Sikadur 507 aggregate by weight added to achieve the 0.80 coefficient of friction. e exact daily timetables varied based on weather condi- tions. With curing occurring within hours, it was often possible for the crew to coat most or all of a given segment in a single day. But regardless of circumstance, the crew remained poised. "We were top-coating one night on the North shore, and on the West shore, we were shotblasting," Osborn said. "ey divided up into smaller teams, and it was like a three-ring circus that had been choreographed. Sometimes we would blast ahead, and other times we might have had to wait overnight or until the next morning to do a topcoat or even a new polyurea." Testing was conducted throughout the project, so the Osborn crew didn't have to wait long after applying the final topcoat before turning the site back over to the developer. "W hen we finished top-coating, we demobilized, cleaned up anything we were responsible for, and even some things we weren't responsible for," Osborn said. "I'm just so fortunate that my guys really care about what they do." Making Waves Best of all, Osborn wasn't the only person to notice his crew's expertise. Steve Cissel, CEO of the lagoon developer Twin Creeks Development Associates, LLC, wrote a detailed and glowing letter of recommendation for Osborn Contract Services. "e team that arrived on the job from the first to the last day completed the daily task in achieving the highest level of quality and production," Cissel wrote. "Every specification from testing samples to the final testing of the Sika coating were exceeded." Osborn said Cissel was impressed after just the first day. "We pulled up with our crew, and they saw five trucks and 12 men," Osborn said. "It looked so complicated. And at the end of the first day, not a single man had been given specific instruc- tions. ey had all just worked a 12- to 14-hour day, and they knew exactly what to do. ey didn't have to be told, and Cissel told [Primeaux] that he was amazed by that." For Osborn, who has worked in the industry since 1980, it was one of the more sparkling projects encountered throughout a long and distinguished career. "It was a unique and memorable project," he said. "We learned a lot." Because of the Osborn Contract Services team's work, future residents of the luxurious Beachwalk community can enjoy what the developer says is the largest "crystal lagoon" in the country and one of the first lagoons ever constructed in America. Consider this job a splash hit! CP Polyurea-Coated Lagoon VENDOR TEAM 3M Safety equipment manufacturer 3M Center St. Paul, MN 55144 (888) 364-3577 Blastrac, NA Equipment manufacturer 13201 N Santa Fe Ave. Oklahoma City, OK 73114 (800) 256-3440 Graco Inc. Equipment manufacturer 88 11 th Ave. NE Minneapolis, MN 55413 (612) 623-6000 Honeywell International Safety equipment manufacturer 900 Douglas Pike Smithfield, RI 02917 (800) 430-5490 Metabo Corp. Equipment manufacturer 1231 Wilson Dr. West Chester, PA 19380 (610) 436-5900 Nu-Safe Testing consultant 44 Cummings Dr. Walton, KY 41094 (800) 275-7771 Pullman Ermator Inc. Equipment manufacturer 17400 W 119 th St. Olathe, KS 66061 (855) 736-2869 Sika Corp. Coatings manufacturer 201 Polito Ave. Lyndhurst, NJ 07071 (800) 933-7452 Stego Industries, LLC Material manufacturer 216 Avenida Fabricante, Ste. 101 San Clemente, CA 92672 (877) 464-7834 Sunbelt Rentals Equipment distributor 11231 Phillips Industrial Blvd. Jacksonville, FL 32256 (904) 380-9780 Tyvek by DuPont Safety equipment manufacturer 5401 Jefferson Davis Hwy. Richmond, VA 23234 (800) 931-3456

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