This might be the stuff I've been looking for. I need to scratch build
a couple of tires for a 1/8 scale trailer that I am building. My first
thought was to make a wood pattern of the tire and then cast it in
rubber molding compound.

Can this stuff be turned on a lathe? If so, this might be what I want.
I've read through both sites listed above and it says it can be
machined, but it does not specifically mention either lathes or mills.

Anyone actually use this stuff?

Mike