According to Powder toy physics, Once that thing is hardened, It will never move again.
In fact, It wont even move in the first place to get hardened.
One of my many pet peeves: Silicon != silicone. This guy wants liquid silicone (rubber), not liquid silicon (metalloid).
In fact, It wont even move in the first place to get hardened.
It starts as a liquid; if it doesn't move for more than 10 seconds, it hardens into a solid.
Oh, didnt notice that. That makes it a little better.