... complete welding. Exothermic welding is also called as fireclay fusion joining, fireclay fusion welding, exothermic fusion welding, exothermic welding, chemical heat fusion welding, etc.Chemical reaction rate for exothermic welding is ... safety.Product NameModel No.Unit NoteExothermic Welding Powder(CADWELD)BSD-EW-F1515#Buy Welding Powder series products, then starting powder, starting cotton, metal ...