Zybanium was a substance used by the Time Lords for materials tasks needing durability and resistance to temporal energy.

The Temporal Reactors in a Class 7C Time Station were shielded with Zybanium. (AUDIO: Neverland)

Rassilon's Foundry contained a number of containment cells with triple-thick Zybanium shielding. They contained entire star systems, and in one case, the Divergent Universe. (AUDIO: Zagreus)

Nepenthe muzzled K9 Mark I with a Zybanium band when K9 tried to break into the Free Time enclave on Gryben. (AUDIO: Weapon of Choice)

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