ponder,i did a quick Google on Cadweld.i looks like they need an electric power supply.i'm i missing something here?if i had the room for the power gizmo i could carry a pizo light propane torch.
Cadwelds have loose thermite when you take off the cap. After you poor it out, there is some flash powder stuck in the bottom. Used properly, this is then poured on top of the mold in the cadweld. It is relative dangerous to light hence the sparker is used.
To use the Cadweld to simply light a fire, I do not open the plastic can. I simply cut a slot in the BOTTOM of the can where the flash powder is stuck. I then slip in a strip of magnesium or cannon fuze to light it. This allows me to get my hand away from the flash powder and back up.
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