The propellant tanks don’t leak, the combustion products aren’t corrosive.
Designing spacecraft is like “does this material ever outgas anything which might affect other parts? I guess we can’t use it” much less leaky propellant tanks.
Designing spacecraft is like “does this material ever outgas anything which might affect other parts? I guess we can’t use it” much less leaky propellant tanks.
Nitpick: if the chemical combustion is perfectly efficient, there are no corrosive byproducts or remainder.