Propergol is the main sonic project of J?r?me Nougaillon, director of the Hermetique and Gazoline record labels, whose side-projects include Sea-Green Series, Wrong Number, Cosmos Entropy, and Vargtimmen. Propergol is typically industrial/power electronics, whereas the side projects are typically ambient and experimental. J?r?me Nougaillon's production abilities are sought after; for instance, he was chosen by industrial/power electronics mainstays Genocide Organ to re-master their album Remember for its reissue.
Similarly, Genocide Organ members own/operate Tesco Records, whose side-label Functional re-released Propergol's first two albums, Un D?cha?nement de Violence and Cleanshaven. Propergol live performances are few and far-between, but never to be missed.