Cosmic Rust (disease)

Cosmic Rust is a microorganism that devours Cybertronian metals. An infected Transformer starts growing a rust-like substance all over their body. Eventually, the corrosion causes the Transformer to waste away to nothing.



Cartoon Canon
Cosmic Rust was first discovered in the ruins of an ancient Autobot colony in deep space, on the planet Antilla. The Decepticons who visited the planet were accidentally infected by the rust courtesy of a stray meteor. The radiation provided from a weapon found on the planet (known as The Lightning Bug) caused the virus to accelerate substantially.

The only cure for Cosmic Rust was a substance called corrostop, invented by Perceptor to remove corrosion of any form and protect substances from future corrosion.