In the bar area, the client wanted a little more of a subdued look so Rains added more brown to the tan color to give it a softer look. He applied two coats of the stain to the floor and then burnished with a white pad on a propane burnisher. After vacuuming, Rains applied Certi-Shine potassium silicate densifier in multiple thin applications to the concrete to the point of rejection.
Custom logos were designed for the lobby and the bar area. Rains worked with Modello Designs to create a custom stencil. He used American Decorative Concrete AmeriPolish Dye in Mahogany to color the stencils. Rains said he chose the dye because it was able to penetrate the tan Certi-Shine already applied onto the floor.
Once staining was complete the polishing process resumed. He started using an HTC 500 planetary grinder with a 200-grit resin. Rains says the HTC 500 is a lighter unit and they wanted to make sure the stain was not damaged with the first cut. He also used the HTC unit to polish any tight areas in the restaurant. Polishing progressed using the SASE 780 and a 400- then 800-grit resin sequence. Between each grit he used an auto scrubber to clean the floor.
After polishing with the 800-grit abrasive, Rains applied Certi-Shine Fixative to react any unreacted silicates in the floor. The floor was finished with three very thin coats of Certi-Shine Finish Coat. When dry, it was propane burnished with black pads to heat up the sealer and force it into the pores while removing excess surface film. A final buff was done with hogs hair pads.
Rains was able to complete the job in the two-week time frame. There were other renovations going on in the restaurant while he was working but not any that interfered with his polishing process.
The finished floor turned out well, and for Rains it was a great job to call his final project as a polishing contractor. He has since transitioned out of the concrete contractor business and is now a consultant to the polished concrete industry.
Blue Diamond Services
Services Offered: Polished and stained concrete, stamped overlays and acid staining for residential, commercial, schools, big box retail and industrial markets.
Number of Years in Polishing: 12
Certification Level in CPAA: Master Craftsman
Project Size: 4,200 square feet
Key Products & Equipment: HTC 500 planetary grinder, Sase 780 planetary grinder, Vexcon Chemicals, Inc. Certi-Shine MicroStain FSR, American Decorative Concrete AmeriPolish Dye, Modello Designs stencils, Tennant 5680 auto scrubber, Patriot sprayer, Ultra Trak densifier applicator, Flex North America hand grinder equipped with a CDC LaRue Dustgrabber, Nilfisk vacuum, GranQuartz Quick Change metal and Surface Pro resin polishing pads, Nobles Quick Clean pressure washer/wet vac, 3M Advanced Masking Film.