Mounting seoul led question.

[Paul6ppca]

Is it Artic silver or Artic alum epoxy better/proper to mount a seoul P4 led to an existing star?

 

[mahoney]

Artic silver epoxy is marginally better than Artic alumina epoxy at heat transfer. But the Seoul slug needs to be isolated and the alumina is slightly better as a non-conductor. The alumina is cheaper too.

But...if you think you might upgrade to the latest and greatest LED next year, a thin layer of a heat conductive insulator like mica with a bit of good thermal paste on each side under the Seoul will allow for easy future change while still maintaining decent heat transfer.

 

[Paul6ppca]

Artic silver epoxy is marginally better than Artic alumina epoxy at heat transfer. But the Seoul slug needs to be isolated and the alumina is slightly better as a non-conductor. The alumina is cheaper too.

But...if you think you might upgrade to the latest and greatest LED next year, a thin layer of a heat conductive insulator like mica with a bit of good thermal paste on each side under the Seoul will allow for easy future change while still maintaining decent heat transfer.

So both will work with a slight advantage of each that you pointed out.
Thanks! ,I read that but was unsure if I needed the best non conductor.
Good idea on the mica ,I hadnt thought of that.