a couple of years at this point since I put it on, the training band itself lasted about five years in it's intended use, until a piece ripped off the end (I don't think you're supposed to tie knots in it like I did, that's where it came apart). It seems fine as a grippy surface still.

I glued a piece of an old resistance training rubber band to mine (a flat stretchy ribbon type, it's very grippy)

It's more that "molten" is an extra descriptor used for the liquid state of something that's usually solid. So molten ice sounds fine, molten water sounds weird and tautological, because of the assumption that you mean liquid water the majority of the time you say "water"