Hello, I've seen the term "oak rust" on this ng more than few times over the years, usually used in a facetious or sarcastic way. I have been unable to go back far enough find the thread where this became a thing. I take it that it's not a reference to a fungus afflicting oaks, nor the concrete staining abilities of the oaks' reproductive assets.
Is there a fallacy that oak dissolves fasteners?
Scott in Dunedin