A cikin aikin fesa harshen wuta, ana ciyar da molybdenum a matsayin hanyar fesa waya zuwa bindigar feshi inda iskar gas mai ƙonewa ta narke ta. Ana fesa ɗigon molybdenum a saman da za a shafa a inda suke da ƙarfi don samar da wani abu mai wuya. Lokacin da manyan wurare suka shiga, ana buƙatar yadudduka masu kauri ko buƙatu na musamman game da ɗorewa dole ne a cika su, ana fi son aiwatar da feshin baka. A cikin wannan tsari, ana ciyar da wayoyi biyu da suka ƙunshi kayan aikin lantarki zuwa juna. Ana narkar da waɗannan saboda harba arc kuma an haɗe su a kan kayan aikin ta iska mai matsewa. Wani sabon bambance-bambancen fasahar fesa harshen wuta yana ɗaukar nau'i na Babban Gudun Oxygen Fuel Spraying (HVOF). Saboda musamman kama narkewa na abu barbashi da kuma sosai high gudun a abin da suka yi karo da workpiece, HVOF coatings ne sosai uniform kuma suna halin da low surface roughness.