A concrete floor gets coated with an epoxy or polyaspartic that have some sort of aggregate then sprinkled onto it. There are a few reasons for doing this. The foremost being that this gives you a high traction floor that is very slip resistant. This surface can also be excellent at hiding dirt and grime. This concrete flooring solution is typically, but not exclusively, used in garage floors, kitchens, and bathrooms. Where oil, water, and chemical spills are likely. We can and often have the aggregate go up the wall a few inches in what is called a cove. This helps cleaning these areas much easier as any spills can pool and not soak up into the concrete on the wall. The aggregate options are sand, quarts, viynil flakes, glow in the dark flakes, or UV luminescent particles. The lowest cost aggregates are sand and viynil flakes, followed by quartz and then the glow in the dark ones. The quartz is more expensive because more layers of epoxy or polyaspartic are required to properly apply these, so you are in essence paying for a thicker more durable floor.