milenk0
+1y
i feel i need to dispell a few of the rumors on this one. i personally have never seen a block of magnesium catch on fire. the only time i was able to fire up Mg was when it was shaved down into shards. once that stuff gets going, it's seriously tough to put out. it takes a class D fire extinguisher or a foam called afff. afff is aqueous film forming foam, and the purple form of it is the most up to date. i believe it is a potassium based smothering agent. adding water to Mg is extremely bad, because magnesium is violently reactive to H2O. it makes hydrogen gas, which burns hot as crap too.
another myth is that your stuff will instantly catch on fire and burn to the ground. wrong. you have a high likely hood of it catching on fire, but it would be due to the buildup of shards and powder form (sparks) in a cavity on your vehicle. this could happen with and metal, but magnesium burns extremely hot, and lasts longer on a small amount of oxygen as opposed to iron, therefore, once it builds up in a small area, it's going to start a major burn. i have never heard of a big chunk of Mg burning, i mean think of wheels and engine blocks, they can be drilled on and welded on no problem. if you want to drag magnesium, but cant afford the $500 fire extinguisher, i would suggest using sand.