This article is about Rust Plague. For {{{2}}}, see [[{{{3}}}]].
Cosmic Rust is a microorganism that devours Cybertronian metals.
History
The Covenant of Primus
- Main article: Rust Plague
Transformers: Exodus
Upon arriving on the planet Junkion, Optimus Prime was worried about an infection of Cosmic Rust. However, his fears did not come to pass.