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    Wet or Dry Concrete Polishing£¿
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    Wet vs. Dry Concrete Polishing

    Contractors can polish concrete using wet or dry methods, but typically they use a combination of both.

    The wet process uses water to cool the diamond abrasives and eliminate grinding dust. Because the water reduces friction and acts as a lubricant, it increases the life of the polishing abrasives, particularly the resin-bonded disks, which can melt at high temperatures. A disadvantage of the wet process is the mess. Crews must collect and dispose of the slurry that's generated, which slows productivity.

    Dry polishing requires no water. Instead, contractors use machines equipped with dust-containment systems that eliminate virtually all of the mess. Typically dry polishing is used for the initial grinding steps, when more concrete is being removed. As the surface becomes smoother, and crews switch from the metal-bonded to the finer resin-bonded diamond abrasives, they generally change to wet polishing. However, some manufacturers have introduced resin-bonded disks that are designed to withstand the friction of dry polishing, allowing the entire process to be done dry.