Hermética was an Argentine thrash metal band from San Martín, Buenos Aires. It was formed by bassist Ricardo Iorio in 1987 after his previous band, V8, disbanded. Hermética was signed to the independent record label Radio Trípoli Discos throughout their career. The band's initial lineup consisted of Iorio, vocalist Claudio O'Connor, drummer Fabián Spataro and guitarist Antonio Romano. Spataro left the band in 1988 and was replaced by Antonio Scotto. This lineup recorded their eponymous album, the first thrash metal album recorded in Argentina. At this point of their career, Hermética performed mainly in Argentina, except for one concert held in Uruguay. In 1990, they released Intérpretes-an extended play which included covers of Argentine rock and tango songs. Both albums were released by Radio Trípoli Discos as a single CD when digital technology became available.
Scotto left the band in 1991 and was replaced by drummer Claudio Strunz. This lineup recorded the band's second studio album, Ácido Argentino. Hermética opened for Black Sabbath and Motörhead during their visits to Argentina, but had to cancel their headlining tour in Paraguay.