In summary, 3M provides Thermally Conductive Interface Materials for use between the heat sink and a heat source. 3M provides thermally conductive tape, pads, grease and adhesives. Tapes provide good wet-out, do not require mechanical fasteners and are easy to use. Pads have greater thicknesses, they conform to surfaces easily and fill gaps. Grease is low cost and allows for good wetting. Finally, 3M thermally conductive epoxy flows and fills micro-spaces on surfaces and the ultra-thin bond line helps achieve low thermal impedance.