After a bit of cleaning the slag off, a solid, durable weld is left behind. The official name for this process is ‘exothermic welding‘, and it has been in use since the 19th century.

But first, let's try one more exothermic reaction ... which was used in the past to weld railway lines together. We managed to generate enough heat in our thermite reaction to weld two pieces ...

Broco, Inc. sets the world standard in underwater exothermic cutting and welding with advanced torches, stingers, rods and electrodes - designed by divers for divers. We share our exothermic ...

Iron oxide, aluminum, and a catalyst are placed in a flowerpot. The reaction is extremely exothermic resulting in molten iron and aluminum dripping into sand below the flowerpot. The demonstration ...