Water - Plasma Welder?

[out2kayak]

Just curious if anyone has ever heard about someone welding using water - alcohol as a shield?

http://www.multiplaz.com/about

Sounds like it would rust the crap out of steel.

Normally you'd use an inert gas for shielding from atmospheric gases (such as oxygen, nitrogen, etc.) and last I checked water was made of hydrogen and oxygen in a polar covalent bond. When water comes into contact with iron it will dissociate and the oxygen will bond with the iron forming FeO2 or rust.

Thoughts?