Thanks so much for the info, I KNEW I'm not an expert on rubber tires. Have you heard about this new "memory metal" discovery : a rubber-metal alloy with the same properties as the crash debris found at the Roswell UFO crash site?
Rubber and metal can't form an 'alloy'. You can powder the metal, then mix it with a variety of hydrocarbon compounds, like the flexible rubber magnets on the fridge, but a true alloy just ain't possible.
I've seen 'memory-metal', though. Wierd stuff.................FRegards