I have a couple of the ceramic skids I bought from Rob Janiger when they were his. Today we were talking about these. He brought up an interesting idea. What if you could get come ceramic, ie old toilet or cookware , and pulverise it into a dust or so. Then you could mix that with epoxy or heck, even CA and you would get a skid that is very tough.
These ceramic skids are real tough. They practically scratch the runway.
I think I will try this method and see what the result is. Might be worth a try since it looks like now one makes them anymore.

Billy