LED adhesive

[MtLuke]

I need to adhere my LED's to my heat sink and I think my Artic Alumina Adhesive got lost in the mail. Can I use the JB weld as a substitute? I don't know what kind of heat transfer properties it has-anyone have an idea?
Thanks, Eric

 

[Ken_McE]

Mechanically it should work fine, but I've never looked into its thermal conductivity. What LEDs are you running?

 

[dom]

Hi Eric:welcome:

I think some thermal grease under them -the maybe a few dabs of the JB around the edges to hold it in place?
The JB may be a little thick and might not transfer the heat as well.

Cheers
Dom

 

[mr_marmalade]

a few months ago i saw this & though it was neat although i havent tried it myself;

http://www.overclockers.com/tips683/

so long as you've got some thermal paste kicking around that is.

 

[Darell]

That's just how the thermal epoxies are made. You've got your epoxy, and your thermal transfer paste. Mix. You can certainly make your own. I wouldn't use just plain epoxy on anything that will be driven any harder than "minimal."