MASSCOOL Fanner-420 Thermal Grease Cooling (FANNER-420) MASSCOOL Fanner-420 Thermal Grease , 2.0 Gram , Color: White Application: can be used on the rear side of the heat sink which has no thermal pad. It will improve the heat dispatch of your processor. Thermal Resistance: 0.06 Degrees'/W, Thermal Conductivity: 7.5 W/m-K , Weight: 2.0 Gram , Dimensions: Injection tube 150 x 5 x 5mm. (w x d x h) , Color: White