Aubertin met Yves Klein in 1957 and started making his first red monochrome works during 1958-59. In 1961 Aubertin officially joined the ZERO movement, which adopted monochrome expression as a way of breaking with tradition. The same year, Aubertin added the medium of fire to his works. Both red and fire represented his own interpretation of ZERO's 'tabula rasa', rather than an aesthetic experience. In addition, the colour red is also rich in psycho-analytical interpretations and connotations, and has peculiar optical effects on the viewer. From 1965, Aubertin started his performances of burning paintings, books and objects and thus became considered a conceptual artist. Today, Aubertin continues to give performances of controlled fire, in which the protagonists are books and pianos.

Aubertin exhibited with the ZERO Group in Frankfurt, Amsterdam, Rotterdam, Berlin and Milan.

His works are held in public collections, including: Museo d'Arte Moderna e Contemporanea, Bolzano; Museu de Arte Moderna, Lisbon; The Norton Museum of Art, West Palm Beach, Florida; Musée de Graz, Graz; Museum of Düsseldorf, Düsseldorf
Centre National de l’Art Contemporain, Paris; Stiftung für Konkrete Kunst, Reutlingen.