Because that is fundamentally impossible.
mmmh....
it would need to be a perfect isolator with no radiation leaving off....
... like, for example , a huuuuuuge non - rotating black hole (so Hawking radiation in negligible),
which by no means is impossible...
... but is nothing I would like to come even near to, so it's quite impractical, I admit
is it "gel-like or liquid" ?
I don't know
nobody knows
so it even might be, yes
I love when philosophy and science do collide, those moments are most amusing...
regards
Ingo
btw.: my reading of the original question is, that Keokha is looking for a liquid or a gel that wouldn't form droplets no longer (i.e. remain +/- constant in shape) when cooled below 60° F
like common glass, for example