I like that story. I fixed a microwave door latch with a beer-can shim and some decorative ribbon; we used it another 11 years.
replythere's also a plastic liner on them that I'm sure helps.
replyIt also helps that they are made from aluminum which doesn’t rust like iron does.
replyIt rusts just like iron, but the rust (AlOx, or alumina) stays bonded to the metal and actually protects it.
replyRust being literal Fe2O3 makes a convincing argument that aluminium sure oxidises but doesn't rust pretty much by definition ;)
replyIn 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
replyit does not rust, it corrodes :)
replyAnd epoxy binds to aluminum just fine ? Epoxy is weird. What solid material does it NOT bond to ?
replyPolyethylene, like they use in food containers. Virtually nothing sticks to it unless specifically designed.
replyIt does not bond to polypropylene and other low surface energy plastics
replyTerminology question - I understood those to be "high-energy" surfaces, because the chains are strongly bound. Is it a typo, or am I wrong?
replyTeflon.
replyYummy, my favorite!
replyActually should be mostly fine since it’s pretty inert, unless you eat the stuff used to make it.
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