upvote
It rusts just like iron, but the rust (AlOx, or alumina) stays bonded to the metal and actually protects it.
reply
Rust being literal Fe2O3 makes a convincing argument that aluminium sure oxidises but doesn't rust pretty much by definition ;)
reply
In other words: it rusts, but it doesn't rust like iron. It rusts in a much less destructive way because the aluminum oxide protects the rest of the aluminum from oxygen
reply
it does not rust, it corrodes :)
reply
And epoxy binds to aluminum just fine ? Epoxy is weird. What solid material does it NOT bond to ?
reply
Polyethylene, like they use in food containers. Virtually nothing sticks to it unless specifically designed.
reply
It does not bond to polypropylene and other low surface energy plastics
reply
Terminology question - I understood those to be "high-energy" surfaces, because the chains are strongly bound. Is it a typo, or am I wrong?
reply
Teflon.
reply
Yummy, my favorite!
reply
Actually should be mostly fine since it’s pretty inert, unless you eat the stuff used to make it.
reply