Fluorinert? Curious how it'll work. I use the stuff on a daily basis for work (HFE7100) and the things that I've noticed with that fluid is that: a) if there's the smallest leak, even a pinhole, it'll find it (and the smaller it is, the harder it will be to find the leak since it is odorless and evaporates rapidly), and b) depending on the material, it will react to your tubing/o-rings/etc and will become statically charged due to it leeching material.
When we had originally switched from FC-77 to HFE-7100, we found that condition out when various individuals were getting shocked by handling instruments in the machines. Lo and behold, the fluid in the system was generating a charge differential of excess of 2kV. So for now, we're using a special additive to the fluid to reduce the charge build-up in addition to material changes in the coolant loop to minimize that build-up.
If you read through the MSDS and documentation for Fluorinert in regards to implimenting the system it'll note that and what precautions and regular maintenace will need to be performed on a system. If you haven't, I'd recommend that you do before you get a rather rude surprise.
