High quality thermal paste + something good for potting drivers?

[StyXSIS]

Maybe this thread will give you more ideas

High Performance Potting Epoxy - Interested?

I've built a few XM-L based lights now... a couple Mag conversions and several single 18650 Li-Ion based units as well. All were built for duty use - so I had been potting drivers and leds with Arctic Alumina epoxy - and it works well except the cost -- for my mini production needs AA is expensive on a per flashlight basis. So, after some research I believe I have come up with a simple resin-based clear potting epoxy and hexagonal boron nitride powder combination that will not only outperform …