Wait a minute, you live in China and can't get that silica goop stuff. Sorry, I jumped the gun again....oh woe.
Let's see, what can you use...hmmmm...do they still use packing material for water spigots in China? Maybe try that. Or some asbestos twine.
Or just saw the pipes off at the junction, and forget about it. On second thought, loud pipes get you brought up before the peoples nuisance board and you might get executed, or your organs harvested, so scratch that.
Pipe temp is HOT, so don't touch it.
Hope this helps. Can you get a nice used Chang Jiang over there? Those are SWEET!