CoatingsPro Magazine

MAR 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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Page 48 of 84

48 MARCH 2018 COATINGSPROMAG.COM cementitious urethane to fix larger areas. "And now it's all been blasted, ground, and patched," Frater said. Finally, it was time to move onto the good-lookin' stuff! Time Is of the Essence e crew worked like a well-oiled machine. Each floor was divided into three sections, and they were able to complete each section in about a week with their assembly. In total, it took about 12 weeks over the course of a year to complete all stages of the job. e crew had one person mixing material, two people rolling and cutting in the edges, and one person each for squee- geeing, backrolling, and broadcasting. ey wore knee pads, spiked shoes, and gloves throughout the project. To ensure proper mix ratios, a foreman was in charge of mixing batches of the material from 55-gallon (208.2 L) drums at the staging area. "is is a critical step in the installation process," Frater explained. e foreman then pushed the Mega Hippo Portamix, made by CS Unitec, down the long hallway and poured the material to the crew as needed. en, the rollout chain would come through: squeegee, roller, broadcast. For the cementitious urethane system, covering 26,300 square feet (2,443.4 m²) on the first floor area, included laying down Poly-Crete SLB (self-leveling broadcast). e coating was installed at an average thickness of 3/16ths of an inch (0.5 cm) using squeegees and 18-inch (45.7 cm) rollers, followed by spike rollers to release any air bubbles. "en the decorative vinyl flakes were broadcast into it," Frater explained. After it cured, the floor was vacuumed to remove any excess flake, buffed with a brush attachment "to knock down any edges of the flakes," and then a grout coating was applied. e grout coat, Dur-A-Glaze #4 Water Clear 100 percent solids epoxy, was applied at 75‒80 square feet (7.0‒7.4 m²) per gallon (3.8 L). e crew mechanically sanded the grout coat with 80-grit paper, vacuumed again, and then applied the topcoat: Armor Top satin with an aluminum oxide grit or nonslip additive at an average of 600 square feet (55.7 m²) per kit. On the top three floors, the system was a double broadcast epoxy system. at was installed to a total of 83,670 square feet (7,773.2 m²) and started with a coat of Dur-A-Glaze #4 100 percent solids epoxy "with a super-stick additive to help promote adhesion," Frater said. at clear coat was applied with squee- gees and 18-inch (45.7 cm) rollers to an average thickness of 100 square feet (9.3 m²) per gallon (3.8 L). e vinyl flakes were broad- cast to rejection, and any excess was vacuumed. A second coat of the epoxy went down at the same rate with vinyl again added in. Again, excess flake was vacuumed up, but then after this layer, the crew used a buffer with a brush attachment before applying the grout coat. "e Water Clear hardener helps to prevent discoloration of the coating caused by sunlight," Frater Some areas needed to be protected with curtains or 1.5-mil (38.1 microns) plastic before coating. On the cementitious urethane system, the first coating was 3 / 16 ths of an inch (0.5 cm) of Poly-Crete SLB. On all floors, the O.T. Neighoff crew used a grout coat, which was then sanded and vacuumed before moving onto the urethane topcoat: Armor Top satin. They used squeegees and spike rollers throughout the project. Concrete Coatings VENDOR TEAM Blastrac, NA Equipment manufacturer 13201 N Santa Fe Ave. Oklahoma City, OK 73114 (800) 256-3440 CS Unitec, Inc. Equipment manufacturer 22 Harbor Ave. Norwalk, CT 06850 (888) 981-9201 Dur-A-Flex Coatings manufacturer 95 Goodwin St. East Hartford, CT 06108 (877) 251-5418 The Home Depot Material manufacturer 2455 Paces Ferry Rd. NW Atlanta, GA, 30339 (800) 466-3337 Robert Bosch Tool Corporation Equipment manufacturer 1800 W Central Rd. Mount Prospect, IL 60056 (877) 267-2499

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