If your a system builder I wouldn't suggest using anything on you customer PCs besides the thermal pad on your CPU in case that customer burns it out.
http://www.xtremetek.com/info/index.php?id=14&page=1
However trick that you could do to get around this is before you ship the chip off you clean it.
http://www.xtremetek.com/info/index.php?id=14&page=1
However trick that you could do to get around this is before you ship the chip off you clean it.