[mannykannot]

I have something I want to remove rust from, so I have been thinking about sand blasting. Thus, this thought popped into my head: how spectacular would it be to use aluminum powder? (To be clear, I am not going to try this.)

My wife’s reaction to this was “You guys…” but I know she would absolutely want to watch if someone was going to try it.

[etrautmann]

I suspect you would need much more kinetic energy to get a thermite reaction going than the aluminum powder in a sand blaster.

[tenuousemphasis]

I wouldn't have thought you could do it by whacking together some 2kg rusty iron balls and aluminum foil but you can. I wouldn't try it inside of a building I didn't want to burn down.

[cobalt60]

Something like over torqued lugs on aluminum wheels