Originally Posted by
Mr. Spadoni
...BB is a Shimano UN55. Threads were greased as per Shimano tech sheet. Loctite was likely used as there is a fairly new tube on the bench and I would not have used it on anything else...
I would guess that the grease negated the effect of the loctite. As others have suggested, clean the threads then apply only the loctite.
Brent