I saw this plastic being demonstrated by the inventor on TV, in front of a couple of American government officials. A gas blowtorch was used on the sample for about two minutes. With the blowtorch removed, the undamaged sample could be picked up straight away, and felt only warm. The US rejected it because the inventor wouldn't give them the recipe, and insisted that he was the only person who would make it for them.
With the problems over the ceramic tiles on the NASA space shuttles, I often wondered why the US didn't swallow its pride, and use this plastic stuff instead.