I think the only thing that can do that is diamond or a LOT of PTCT/NTCT

There is no point in doing a Vault with Diamond , whats the fun if it can't be destroyed. Its awesome when you make something that lasts long enough untouched not that can't be touched , so we can experiment with it. I found out that if you put spark through any metal expecially NTCN and PTCN they will become more resistant to melting if not in direct contact with Lava , Plasma or any hot material. If you try to heat it it ain't ever gonna melt because the curent will keep it at about 400-500 C , it both heats it to 400 but it will also cool it down so it will not get above 1000 C.

Other thing , leave FOAM its useless at isolating from blasts . It will keep the heat away but if you put fire near it it will burn faster then you can say FOAM. Fire + the pressure from a blast it will poulverize it and start a fire.

Gl and keep it up.

Snitzi
Thanks for clarifying, I was working on one of my projects and I thought it was a bug that my NTCT wouldn't melt. Completely forgot about that electricity affects temperature.

And for the foam thing, I think Triclops made an insulator element, he posted the beta in the New Elements thread I think.

@Snitzi: burnining FOAM right now- FOOOOOOOAAAAAAAAAAM!!! Nope, still going.

Is it still destructable? I liked with foam, that it had a weak spot.