CoatingsPro Magazine

JAN 2009

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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"We requested that Crown Polymers have a representative on site because of the tight schedule — they sent two people, Bill Dimmick, a senior manager, and Michael Fugatt, the regional manager," Adney describes. "Then we assigned four crew members working on a dedicated mixing station. And two of them were constantly loading buckets onto a four- wheeled cart and bringing them to the guys working on the floor. We had a steady turn-over of product." The self-leveling epoxy polymer concrete, CrownShield SL, Product No. 315, was mixed on request by the crew supervisor, hauled to the placement site, poured from buckets into the bead left from the last placement in windrows, and was spread by two crew members using 24-inch wide gauge rakes from Midwest Rakes. It was then backrolled by two more crew members using nine-inch and 18-inch spiked rollers. "Another guy used a hand-trowel for all of the detail work on the edges and around every door, etc.," says Adney. "In all, we applied the overlay at a thickness of 1/8-inch over 10,000 square feet in two hours and 20 minutes and left it to cure overnight." "On our final day, number four, the crew was scaled back to six guys," he continues. The BodyTek team started their quality control check by walking the floor and checking the overlay for any signs of outgassing or bubbles. If discovered, these areas were filled with Crown Polymer's Quick-setting Crack Sealer, Product No. 120. In about 20 minutes, these small repair areas were lightly sanded, followed by a quick vacuum, and were ready for coating. The repair areas were completed and ready for coating in about the same amount of time as it took to set up the mixing station. Then it was time to apply the top coat. The top coat used was CrownShield 50, Product No. 320 applied at an average thickness of 12 mils. The two-component, 100 percent solids epoxy was mixed at the mixing station, hauled to the placement site and poured from buckets onto the floor. The top coat was first spread into a windrow by a crew member using a 24-inch notched squeegee from Midwest ABOVE Using light-weight chipping hammers, the crew excavated the concrete, sound- ing weak surfaces. The debris from the chipping process was removed, vacuumed, and the concrete surfaces were ready for patching. Any weak areas were filled with a self-priming epoxy polymer concrete/slurry mixture, which was mixed and hauled to the areas, poured onto the floor, then hand-troweled and compacted in place. Write in Reader Inquiry #156 January 2009 J www.coatingspromag.com 83

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