Originally Posted by k-bar
All the foam on that site is compatible with epoxy. I cant find any that is epoxy proof
Epoxy proof/ epoxy compatible, would be the same for your requirements.
Some foams have wider resistance to glues, solvents, fuels, etc, and I tended to work on different and odd projects, so I stayed with the most compatible for my uses. There may be plenty of other formulations available today that will do what you want. Plus if you hot-wire the wrong foam, it produces poisonous gas.
Epoxy is the most forgiving IIRC as to compatibility, but it is several times the cost of some other resins, so there is a trade off.