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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40 SEPTEMBER 2018 COATINGSPROMAG.COM respirators were not necessary. "If you're making dust during your blast, you have equipment troubles," Roach said. "Other than your safety glasses and your ear protection, we're pretty solid on the safety front there. As far as the products go, we were using some low odor products for installation, and these are pretty big facilities with open ceilings, so we didn't have any air movement issues or confined space types of issues." e ceilings were 20 feet (6.1 m) high! Work at the Robinson Township location got a little trickier during this stage of the job. e crew had to cover a larger area at 4,413 square feet (410.0 m²) as opposed to Ross Township's 1,750 square feet (162.6 m²), and as that crew found out on site, the Robinson Township concrete had fiber in it. "at was kind of what threw us a curve ball 'cause we didn't realize they were putting fiber in the mix," Roach said. As he said, it's just one of those things. "Fiber creates a unique challenge when you go to do your primers and whatnot; you've got to burn that down," Roach explained. "After you prep, it tends to stand the fiber up." at meant that after the crew blasted the floor, they returned with a weed burner and burned off the fibers poking through the concrete. According to Roach, the fiber was probably used to strengthen the concrete, and dealing with it was minor. e same might not have been said for the cold weather! After prepping the concrete, the crew opened up the garage doors on either end of the room and cleaned off the slab using gas-powered leaf and deck blowers. Opening up those doors was great for convenience, but it let the cold air right in. "After the cleaning process was done, everything got shut down and was allowed to acclimate, and the temperature came back up," Roach said. ey still had to "gun" the floor using an infrared temperature gage to make sure the concrete was able to accept the coatings. at helped them confirm the temperatures and infer the cure times and exothermic reactions. According to Roach, that happens when the concrete is cold and the air is warm. "Concrete tends to breathe out, and you get outgassing, so we The intermediate coat in the system was General Polymers (CP) 3526, which was squeegeed and backrolled. The crew broadcast 20-40 mesh sand into the wet coating, and they vacuumed excess sand before applying the topcoat. To protect the first two layers, the crew again squeegeed and backrolled the final layer, polyaspartic, GP 4850. That layer finished the coating system on both floors. Storage Floors

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