This thermal CPU paste can be used to improve the effectiveness of a CPU cooler by thermally bonding the CPU to the heatsink, allowing the heatsink & fan to work at their full capacity to remove the harmful heat away from the CPU. The Star Tech Advantage Improves the heat transfer between a CPU & heatsink to keep the CPU running cooler Effectively fills surface imperfections on CPU to prevent air pockets & help heat transfer Ceramic based compound that is electrically non-conductive for safe use around electronics