RainStrykeHeads up on the Conductonaut and the CLC 280, it will leave a residue you will never be able to remove from the copper block on the CPU cooler. That's what happened to mine... It's pretty much the best you can get for thermal conductive applications but it can get really messy really fast. Make sure to watch a few videos on how to apply it first if you go that route... I had a few too many instances where it just required too much time to get everything clean, even then I still randomly find a small bead of that stuff pop up on hardware I used that on years ago. I pretty much use EKWB's Ectotherm for everything... I have a bunch of that Thermal Grizzly Kryonaut but it's old or something and it doesn't spread as well as the Ectotherm, so that's what I use.