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It also helps that they are made from aluminum which doesn’t rust like iron does.
by echoangle 4mo ago
It also helps that they are made from aluminum which doesn’t rust like iron does.
- euroderf 4mo agoAnd epoxy binds to aluminum just fine ? Epoxy is weird. What solid material does it NOT bond to ?
- ridgeguy 4mo agoTeflon.
- AlotOfReading 4mo agoPolyethylene, like they use in food containers. Virtually nothing sticks to it unless specifically designed.
- mjanx123 4mo agoIt does not bond to polypropylene and other low surface energy plastics
- psd1 4mo agoTerminology question - I understood those to be "high-energy" surfaces, because the chains are strongly bound. Is it a typo, or am I wrong?
- mjanx123 4mo agoIt is really called low energy, it refers to the low attractive force of the surface, liquids bead up and do not wetten, in epoxy that results in small contact area and a weak bond, on a high surface energy material it flows into all the crannies and has enormous contact area and a strong bond.
- hdrz 4mo agoIt rusts just like iron, but the rust (AlOx, or alumina) stays bonded to the metal and actually protects it.
- lloeki 4mo agoRust being literal Fe2O3 makes a convincing argument that aluminium sure oxidises but doesn't rust pretty much by definition ;)
- wongarsu 4mo agoIn 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
- redeeman 4mo agoit does not rust, it corrodes :)