Here's what 4Rayn said down the page in the link:
"Warning: The Coollaboratory Liquid Pro and Liquid Ultra were not run on my Intel 2500K water testing simply because I had no intentions of loosing my CPUs 3yr warranty, removing those liquid metal thermal compounds is an undertaking, which will cost you your warranty.
The packages clearly state warnings that the products are electrically conductive, are not to be used on aluminum, and will void your warranty, once I saw the results of removing it from the 965BE, I decided not to run it on my 2500K, the package contents has the TIM in a syringe, application instructions, 2 application brushes, 1 alcohol pad, and 1 abrasive cleaning pad. "
If that applies to your system, then get one of the others. As you can see, there is not much performance difference. I've had success overclocking my E8400, E8600, and Q9650 with Arctic Silver 5 and with Arctic Silver MX. (I know they are older chips, but they work very well on my systems.)