CoatingsPro Magazine

JAN 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 JANUARY 2018 47 Sprayer, crewman Troy Trent donned rubber boots, a 3M respi- rator, and gloves, and applied Vibra Stain in a random motion that allowed the mixture to penetrate and take on a life of its own, full of character. Trent prefers the B & G sprayer because the shutoff valve is located in the tip of the wand versus in the handle, which lessens the likelihood of unwanted drips marring his dye job. e quick-drying acetone allowed Trent to take the entire 9,000-square-foot (836.1 m²) floor from prepped, to stained, to a dry state in four hours! Now, the crew needed to apply protec- tive coatings before rainstorms could water down their efforts. Project specs called for a sealer over the dye job prior to installation of the topcoat. For this application, DCV chose National Polymers 015 Water Based Epoxy. After mixing the emulsion product well, the crew roll and brush applied the epoxy primer to achieve a uniform coating, 2‒3 mils (50.8‒76.2 micron) approximate dry film thickness (DFT). Seay is a strong believer in using blue painter's tape to help maintain proper coverage. "I personally prefer using square-feet-per-gallon versus a mil gage," said Seay. "I' ll go onto a floor in advance and tape off 400 square feet [37.2 m²] or whatever and make sure the crew uses a gallon [3.8 L] to cover that. It keeps us from having to consult a wet film thickness gage all the time, and it keeps the crew on track so I don't have to supervise so closely." e crew wrapped up the National Polymers 015 epoxy installation at midnight ursday, and headed home for a well-deserved but very short rest. Friday morning at 7 a.m., the men met to roll and brush apply topcoats. e just-sealed interior floor would receive a 2.5-mil (63.5 microns) approxi- mate DFT of National Polymers 521 water-based urethane. e unadorned exterior concrete patio would receive a two-coat treatment comprising 3 mils (76.2 microns) total approximate DFT of Increte Clear Seal acrylic resin, which slightly darkens concrete and gives it a wet look. General Polymers 5190 aggre- gate was mixed into both topcoats to provide slip resistance. e topcoat installations went well, but as the crew knocked off for the day, they couldn't help noticing dark clouds gathering overhead. "I was stressed out," said Seay. "I felt like I had made a good decision to start that morning, but from that point forward, it was out of my hands. When something goes wrong, it's all on me." And something went horribly wrong! Downdraft! About two hours after leaving the jobsite, Seay checked the weather radar only to see a massive raincloud headed right toward the jobsite. "In Virginia, storms sometimes develop directly overhead. is one cropped up right next to us and made a beeline for the brewery! Fortunately, for some reason, it split up and rained on both sides of the building," Seay said. But the DCV crew wasn't out of the woods yet because the storm created a strong downdraft as it passed. Saturday morning, the crew arrived to find the interior and exterior topcoats covered with dirt lifted from the brewery's as-yet-un- paved parking lot site. "It was like a mini tornado came through," said Seay. "We thought we would be back to grinding and that the restaurant opening would be delayed, but apparently the coatings had tacked up just enough so the dirt didn't stick. We cleaned up, The finished floor included two layers of Increte Clear Seal with aggregate to a total average of 3 mils (76.2 microns) dry film thickness. Those two were the final touch. Due to the open nature of the jobsite, one challenge was the weather. Despite winds covering the topcoat with dirt, the crew was able to clean everything off and move forward in a timely manner. What had once been a warehouse riddled with uneven and undecorated concrete is now "a very comfortable place to be," according to Blanks. For the client, wear and cleanup are what makes this project successful. Concrete Floor

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