which JB weld are you using?

Flashlight Modding and DIY Parts
1

and why?

i did not use that before. but the deeper i go into modding i need some… (i think)
purpose will be glueing things together with good heat transfer.

so:

  • which JB weld do you prefer?
  • and why?
  • or found another product thats better?
2

I do use Arctic Silver Arctic Alumina , its reliable and relatively cheap(7-8euros in EU), plus i dont know of anything better
Sometimes i use liquid metal too- Coollab ofc

3

Read about it here:

Here.

4

Be careful using liquid metal, it is usually gallium, and it does not mix well with aluminum at all. (forms a brittle alloy that you can snap in half with your fingers) you are fine if the light is all copper, or maybe even brass, but never alluminum.

5

I’ve only used it the once - the ‘original’ flavor.

Why? Seems to be a proven product, used in a lot of mods around here.

6

Ditto, I can still solder parts embedded in it without it softening. I do use other grade thermal adhesives for some bonds and mostly use it for when it needs to be heat resistant and rigid.

mcpcb to sink, critical: AS-5 or AA.

mcpcb to sink, non critical: AS-5, AA, or Fujik(grease or glue, depending…).

potting, removable, non rigid: fujik.

potting, non removable, rigid: JB-Weld

strong, heat resistant, mechanical connections: JB-Weld.

7

jb kwik.
also makes a decent thermal adhesive.
i have driven older less efficient k2’s at over 2a with no problems in m@g mods.
and altilon 1x4 @ 1.5a on a good heatsink in a desklamp mod.