Leaks on heat-pipe

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Just a little follow up. I waited to mail this thing back to NewEgg as I still don't know if this thing is not usable. The green stuff has not evaporated so I doubt it is coolant from inside. It isn't flux either, as the blades are not soldered on to the heat-pipe. Maybe it is some kind of lubricant to ease getting the fins on or something to aid in heat transfer. It is probably something normal and the guy at Xigmatek just doesn't really know what should or shouldn't be on the cooler.

I got a Ultra-120 anyway because of the mounting. I really do not like the push-pin mounting that most coolers. I see a lot of people suggest using the bracket from the ultra on the xigmatek, but I have not seen anyone report after doing this if it fits ok, works well as an alternative etc.

The xigmatek does indeed seem like an awesome product though. I just don't want to deal with the push pins, and thats a personal preference thing.