A disk drive includes a cast base 5 which supports the spindle assembly and the actuator assembly, and a cover 11 that is loosely received by the cast base to form the head-disk enclosure. The cover is secured and sealed to the cast base by a malleable metal foil tape 30 that surrounds the enclosure and continuously overlies the interface between cover and base. The tape complies with the surface irregularities and does not creep, to provide permanent shielding and sealing between base and cover. Cable exiting the enclosure is sealed using a piece of double sided adhesive between the cable and the casting, with the malleable foil tape thereover. Thus no significant thickness is added to the enclosure by the tape, which also provides noise and EMC shielding in addition to securing and sealing the cover.