Sealing a pile with 100LX can control dust for months and even years if done properly. The material creates a crust designed to withstand solar stressing, rain and freezing conditions, as well as elevated wind speeds. Most commonly used to control dust, a properly sealed pile will shed water and alleviate wet coal flow challenges when reclaimed. In addition, the crusting agent reduces air flow through the coal pile which reduces the likelihood of spontaneous combustion.