Umnyango wengilazi ekwazi ukumelana nomlilo usengagcinwa isikhathi esingaphezu kwamaminithi angu-90 ngaphandle kokuqhuma ngaphansi komphumela welangabi ofinyelela ku-1000 °C. Umnyango wengilazi oqinile ongenamlilo unomsebenzi omuhle kakhulu wokuvikela umlilo, futhi ngeke ube nezinguquko ezithinta ukubukeka nokusebenza ngaphansi kwemisebe yesikhathi eside yemisebe ye-ultraviolet.