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As a professional chemist (PhD Caltech 1984), I read that Loctite 574 is a polymeric resin which cures in the absence of oxygen as when the case halves are mated together squeezing out all traces of air. I don't know if the 45 min setting time was a time for the solvent to evaporate but the seal definitely cures and bond to the metal in the absence of air. I have no idea how the other stuff works.
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