ArctiClean 60ml Kit 1 & 2 Thermal Grease Paste Compound Remover and Purifier Unique 2-Step Process: 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 T ArctiClean 1 Thermal Material Remover: ArctiClean 1 uses a proprietary combination of non-toxic biodegradable solvents to emulsify thermal greases or thermal pads. ArctiClean 2 Thermal Surface Purifier: The cationic surfactants in ArctiClean 2 remove any residue left by the ArctiClean 1 leaving a pristine surface for the application of a new thermal interface material. Using ArctiClean 2 With Other Solvents: ArctiClean 2 Thermal Surface Purifier removes the residue of citrus or petroleum based cleaners and inhibits flash corrosion on a copper or aluminum heatsink.