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 45 it along at a certain pace. You push it a bit, but if you push too fast or dial up the RPMs, you risk overheating and ruining the diamonds. We poured water in front of the machines where we could to help grind faster and better and to cool the diamonds." e crew further reduced the rate of travel while grinding wav y areas in the floor. Grinders tend to float over low spots, so slowing down kept the heads in contact with the substrate. Another Round e time-consuming grind — coupled with typical delays caused by working around other trades — put the prep behind sched- ule. Still, a second grind was in order. "Penetrating dye soaks in well on existing concrete, not like freshly poured concrete," said Seay. "e 30/40-grit grind left too many deep swirl marks to allow a smooth pour for the thin-build sealer specified. It also affects the dye job." Seay explains that the tan, brown, and gold hues that customers see today on the finished Ballast Point floor all come from one dye color (mocha) that is absorbed at different rates. Golden hues appear where the dye sinks in quite a bit, darker hues where more dye stays on the surface. Not wanting their Uneven joints were scarified and feathered, level areas and new pours were ground, and ever y thing was scrubbed, buffed, and vacuumed. Before moving onto the system, the crew caulked and cut any lines. DCV sprayed the Vibra Stain using a hand pump. It was applied in a random motion to let the mixture do its own thing. Within four hours, the entire 9,000-square-foot (836.1 m²) floor was stained. JOB AT A GLANCE PROJECT: Install a dye-stained floor at a warehouse turned brewery/restaurant COATINGS CONTRACTOR: Decorative Concrete of Virginia 14719 Wards Rd. Lynchburg, VA 24502 (434) 851-3510 SIZE OF CONTRACTOR: 8 full-time employees and ~8 part-time workers SIZE OF CREW: 8 crew members, plus two co-owners PRIME CLIENT: Ballast Point Brewing Co. 9045 Carroll Way San Diego, CA 92121 (858) 790-6900 SUBSTRATE: Existing and newly poured concrete CONDITION OF SUBSTRATE Existing floor in rough shape, newly poured concrete sufficiently cured SIZE OF JOB: ~9,000 sq. ft. (836.1 m²) DURATION: 1 week UNUSUAL FACTORS/CHALLENGES: » The existing floor was uneven where old pours met. » The crew vied with other tradesmen to complete job on time. » A downdrift covered the new topcoats with dirt. MATERIALS/PROCESSES: » Scarified uneven joints and feathered with DeWalt and Metabo angle grinders » Used HTC grinder with 30/40-grit heads to level existing floor » Used HTC grinder with 60/80-grit heads to remove swirl marks and to prep new concrete floor » Cleaned floor with Clarke Encore automatic floor scrubber » Used Clarke floor buffer to loosen remaining dust and dirt » Used DeWalt 10-gallon (37.9 L) high-efficiency particulate air (HEPA) filter vacuum to remove dust and dirt » Caulked lines on existing floor; cut excess flush with razor blades » Used B & G Equipment Acetone Pump sprayer to apply Vibra Stain; roll and brush applied 2-3 mils (50.8-76.2 microns) dry film thickness (DFT) of National Polymers 015 epoxy primer to seal stain; and roll and brush applied ~2.5 mils (63.5 microns) DFT National Polymers 521 topcoat mixed with General Polymers 5190 aggregate to existing floor » Roll and brush apply two-coat treatment comprising 3 mils (76.2 microns) total approximate DFT of Increte Clear Seal mixed with General Polymers 5190 aggregate » Applied logo with a stencil, dye, and topcoat SAFETY CONSIDERATIONS: » Wore rubber boots, gloves, 3M respirators, and safety glasses as directed » Ensured proper building ventilation when using acetone dye

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