Arctic Silver 5 With its unique high-density filling of micronized silver and enhanced thermally conductive ceramic particles is optimized for use between modern high-power CPUs and high performance heatsinks or water-cooling solutions. Arcticlean: ArctiClean is a two-step cleaning process that removes existing thermal grease or pads and prepares the thermal surface for a fresh application of thermal interface material. ArctiClean 1 Thermal Material Remover quickly emulsifies and dissolves the existing thermal grease or pad from the CPU and/or heatsink so that it can easily be removed with a clean cloth or paper towel. A few drops of ArctiClean 2 Thermal Surface Purifier and some gentle wiping then removes the remaining residue and inhibits flash corrosion on copper or aluminum. Do not be fooled by others trying to sell fake/generic versions of this product. Only buy 100% Authentic Arcticlean and Arctic Silver 5 by Arctic Silver!