I recently received a tube of "Shoe Goo" as a gag gift.  I think it's
similar stuff.  Anyway, a few days after receiving it, I was in a
fender bender in my New Beetle TDI.    The TDIs have this weird "air
snorkel" box which is upstream of the air filter.  It is way
complicated, and includes a bug screen, pressure release flap
valve.   This thing was smashed into about 10 pieces.  I'm sure it's
a $$$ part at VW.   Anyway, about 1/2 tube of shoe goo and it was
back together again.    It's nice to work with because it sets up in
about 5 to 10 minutes, then dries to the consistency of shoe
rubber.   I think it holds up much better than epoxy to vibrations.
Not sure about extreme heat though.   Maybe GOOP is better for that?