Released in March 1999, Dur comme fer is the third studio album by Lofofora. The twelve tracks on this album were recorded in October 1998 at Hautregard Recording studio (Liège, Belgium) by André Gielen, who had previously worked on their former album, Peuh!

The track Les liquides de mon corps is a collaboration with the Dutch band Transpunk.

The track PMGBO (Partouze Musicale Gang Bang Oral) celebrates the band's tenth anniversary by bringing together members of La Calcine, Kabal, LTNO, Mass Hysteria, and Oneyed Jack.

Album tracklist:

1. Au secours
2. Charisman
3. Incarné
4. Les Gens
5. Série B
6. Dur comme fer
7. 1 million
8. Rêve et crève en démocratie
9. 5 milliards
10. Les liquides de mon corps
11. Weedo
12. P.M.G.B.O (Partouze Musicale Gang Bang Oral)

Released on August 11, 1999