Bill,

It can be, although you tend to get some soot mixed in with the glue. Direct heat from a stove or lighter (I've also used a candle) works, as does heating a bit of metal and using the metal to do the "hot-knife-through-butter" trick and smear the glue where you need it.

Hot metal is cleanest, followed by radient heat from a naked lantern (globe off - steady hand to keep from breaking the mantle), followed by stove, followed by any other field expedient heat source.

I have also used an empty tin can on a stove and melted glue in the can to then be dabbed where it was needed using a twig. However, that is more wasteful of the glue and ruins a perfectly good can <img src="images/graemlins/shocked.gif" alt="" />

HTH,

Tom