3 ms·
> Temperature could also slow oxidation down Gonna have to guess that you've never had to replace a car exhaust :-)
by HeyLaughingBoy 4y ago
> Temperature could also slow oxidation down
Gonna have to guess that you've never had to replace a car exhaust :-)
- mauvehaus 4y agoCar exhaust is a weird case though. The water vapor in the exhaust condenses on the cold metal. If you drive far enough, you add enough heat to evaporate the water back out. Else, you end up with a bunch of water in the exhaust facilitating the rusting. In general, you have this problem with cold metal when there's enough humidity to cause condensation. Bare cast iron in an unconditioned space under cover will definitely rust from condensation.