stgrlee,

epoxy is interesting stuff. Just what it does depends largely on the type - like slow cure, cold cure, 5 minute - the brand and how well the proportions are maintained and mixed.

If you don't put in the correct amount of hardner, it wiull stay rubbery or maybe even not cure. Too much and iut gets brittle, while losing strength.

There are only two ways to get it off:
1) cut it off
2) fry it off with a torck, grinder or something else.

If you just heat it and it pops off, that makes me thing that it wasn't stuck on so well in the first place or had a less than ideal mix of hardner and resin.

You're double lucky. It never separated when you didn't want it to. Yet it came right off when you wnatedit gone.

Anybody that lucky can fly my plane anytime!