Salvaging ArcticAlumina Epoxy

kosPap · Jun 14, 2011

well you know the case...Part B dries out....

Now it is cheap but those that have to buy it from abroad it is too long when you need it NOW!

what I tried is mixing AA Part A with regular epoxy glue Part B.....well it works, sticks and the texture gummy is like ultra-thick bubble gum almost gone dry

The question is what are the expected thermal properties? Bertter or worse than the AA thermal paste & 2part epoxy 50-50 mix?

TNX Kostas

think2x · Jun 14, 2011

When my part B dried up I mixed part A with Devcon (both parts) and used it to thermally pot a drop in, I never tried it to glue down LED boards or anything.
The drop in I potted with it is a 2.8A XM-L and it works very well for this use. I tried the drop in without potting it first and it would overheat but runs solid now that it's potted.

bbawkon · Jun 14, 2011

If I'm not mistaken, most if not all of the thermal transfer material is in Part A. Assuming that Part B is just a hardener/reactant, I'll bet your concoction is not much worse (thermally) than regular AA epoxy.

Ben

kosPap · Jun 16, 2011

yep! it seems so....even if part B has the same color as Part A

Salvaging ArcticAlumina Epoxy

kosPap

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