CoatingsPro Magazine

JUL 2017

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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Page 32 of 68

32 JULY 2017 COATINGSPROMAG.COM excellent chemical resistance and non-slip traction properties critical for garage and high-tech services spaces." e north garages were the first to receive the newly installed system. In October 2016, shortly after the agreement between owner and manufacturer was signed, phase one was completed after eight days of work — just in time for the Texas A A A 500 race looming in early November. Based on the success of that area, Intertech was brought back for the second phase of the project in February 2017, when temperatures in north Texas again became consistently warm enough to allow for proper curing of the coatings. For the south garages, an eight-person crew of contractors from Intertech was headed up by Richard Garcia, director of concrete operations, while a field-tech support supervisor from LATICRETE also accompanied the team. But with the O'Reilly Auto Parts 500 — a spring staple at the facility — right around the corner, Garcia and his team had to approach the job with the vigor of a NASC AR driver approaching the final turn. With the facility so popular and used frequently throughout the year, any "pit stops" for mainte- nance had to move quickly. "NASC AR required the garage be ready for inspection and accommodation 10 days prior to race day," Garcia recalled. "is left us only a two-day contingency for weather or any unplanned environmental conditions that could have held up the schedule." Gentlemen, Start Your Coating! e crew began each day by wearing standard personal protective equipment (PPE) provided by Cintas Corp., including respira- tor masks, spiked safety shoes, solvent-resistant gloves, and safety glasses. And as a result of their attention to safety, they ultimately had zero safety-related downtime on the project. Step one of the project was surface preparation, which they did by shot blasting and grinding the existing concrete to their desired profile, the International Concrete Repair Institute (ICRI)'s Concrete Surface Profile (CSP) 2. e coating removal was conducted using 20-inch (50.8 cm) and 10-inch (25.4 cm) blasters from Blastrac, while grinding was done using two 32-inch (81.3 cm) Lavina grinders and one 25-inch (63.5 cm) Lavina grinder from Polished Concrete Solutions, all with 30-grit diamonds. e crew then patched any areas that needed minor repairs with a Spartacote solvent-borne material mixed with a fumed silica filler for thickening. After grinding, larger joints and divots that had scaled or spalled were treated with Spartacote's FAST FIX product, a rapid-setting, two-component hybrid urethane concrete repair material. "e slab required extensive blasting, grinding, and patch- ing to remove the old epoxy and achieve a clean, smooth, and flat floor," Garcia said. e CSP 2 surface profile was necessary for the crew to begin its next step, which was the application of the DRY TEK moisture vapor barrier. DRY TEK, a 100-percent solids epoxy moisture-mitigating primer manufactured by LATICRETE, requires the CSP 2 preparation for proper adhesion. is moisture mitigation is unique, according to the manufacturer, because it allows the contractor to pigment the resin a particu- lar color for it to act as the base-colored primer coat within the system — thereby saving the applicator a step in the coating process and also providing a warranty against any moisture-re- lated failures. In this case, the Intertech crew rolled out the DRY TEK barrier in a gray pigment across the entirety of the prepared concrete at an average of 12 mils (304.8 microns) wet film thickness before allowing it to cure for 12 hours. Once cured, the crew buffed the entire surface using a swing machine with 100-grit screens, and then they thoroughly cleaned it. From there, the crew mixed and rolled out Spartacote's two-part FLEX SB coating in a cobalt blue metallic color. Applied at an average of 8 mils (203.2 microns) dry film thickness (DFT) via 18-inch (45.7 cm) rollers with a ⅜-inch (1 cm) nap, the "mid coat" would serve as the outline for a rectan- gle leading to the 90-foot (27.4 m) Texas Motor Speedway logo to be applied in the middle of the garage. Meanwhile, a black coat of FLEX SB was applied in inspection bay areas at the same thickness to prepare those areas for safety yellow striping. Two dif ferent layers went down on the floor nex t. For the inspection bay areas, a black basecoat with yellow striping. For the logo area, the crew installed a cobalt blue metallic mid-coat. Texas Motor Speedway The crew installed an average of 12 mils (304.8 microns) of a gray moisture vapor barrier called DRYEK before buf fing it with 100-grit screens. The floor was cleaned before moving on.

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