Plug Weld Floor Pans?

Pascamp said

As long as you follow the directions many panel adhesives are actually stronger than a traditional weld. Many cars are almost entirely assembled with it.

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I heard the standard was to only use it on non-structural portions of the car, but I've also heard you'll never find a weld on a Bimmer or a lot of other European cars these days. Do you think it would be a good permanent or at least semi-permanent repair if I bonded the panels with the 3M goop that the body shops and such use?