Man this Arctic Alumina epoxy is cool stuff . . .

[boscoj]

wish I had this back in the day when messing around with peltiers . . .

should be good for my Flexdrive heatsink and adding some mass to the back of my 445 diode/module . . .

Arctic Silver, Inc. - Arctic Alumina Thermal Adhesive

 

[Seoul_lasers]

Can't get this in Korea. I wished I could source some out! excellent stuff!

 

[Tech_Junkie]

I do believe its slightly conductive, so may not be good for a driver heat sink.

 

[pHeneX]

"Arctic Alumina Adhesive is a pure electrical
insulator, neither electrically conductive nor capacitive."

while

" Even though Arctic Silver Thermal Adhesive is specifically engineered for high electrical resistance, it should be kept away from electrical traces, pins, and leads. The cured adhesive is slightly capacitive and could potentially cause problems if it bridged two close-proximity electrical paths."

Arctic Alumina = non conductive
Arctic Silver = conductive

Peace

 

[goninanbl00d]

Even then I wouldn't take chances.

It's quality stuff, sure, but you never know.

 

[pHeneX]

Sure you gotta be careful.
You just want to put the adhesive on the part which needs cooling, make sure it doesnt touch any leads etc.
I learned myself the hard way by messing up 2 Cree MC-E emitters

 

[Benm]

As long as it contains alumina (Al2O3) it should not be conductive at all, alumina is a good electrical insulator and even used as such.

How did you manage to ruin those leds? Got it on the dome or something?

 

[pHeneX]

I think i used to much of it so it was shorting out the pins but i didnt noticed til it was too late.
I used the silver adhesive though..

 

[Tech_Junkie]

Arctic Alumina = non conductive
Arctic Silver = conductive

Peace

My bad. I have the Arctic silver epoxy. I assumed the alumina was the same.