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Some Cybertruck Owners Say Their Trucks Are Shedding Body Panels; One Thinks He Knows Why
(www.roadandtrack.com)
this post was submitted on 23 Feb 2025
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Adhesives can be incredibly strong.
But never a weld.
MEK welds styrene. Cynocrylate forms a mechanical bond. MEK will be stronger in tension, cyno stronger in shear.
Good ole methyl ethyl ketone.
Dropped a rubber boot in a vat of it once to see what would happen.
No idea why, but it came out much larger/expanded.
Fun fact, you can shrink barbie doll heads in acetone.
I don't even know the name of the adhesive they used. I do know that it was made by 3M and that it's orange.
Well, OK. So maybe that adhesive is stronger than a weld on that particular plastic. Of course, if you're talking about adhering a plastic to a metal you cannot weld it so Elmer's would be "stronger than a weld". But whatever's going on it's not adequate.
E: and actually welding plastic together typically isn't that strong, a mechanical bond can easily be stronger than melting the plastic to weld it.