looks like there might have been piping going around it [?] Center looks like the bicycle/car pennants that were sold,,they were kind of waterproofed material.. Didn't work well,,[ then they went to see thru coverings]..

Great it doesn't react to the UV. As long as that center isn't a plastic I think your fine...

- You could always do a burn test,,just use a tiny bit of the red frayed along the whole piece, maybe include a piece of stitching.. All you should get is an ash...PLEASE ,don't do it if your uncomfortable with doing it or never have before....