Originally Posted by
Bill Kapaun
I've ran into a couple bicycle tubes that seemed like that. Kind of like it was part vinyl ???? (also a friend's wheelbarrow tube from a China-mart)
My REMA patches just peeled off instead of fusing. Ditto for a vinyl patch. (air mattress) IIRC, they took about the same effort to peel.
That sounds like the tube was a thermoplastic polyurethane or TPU tube. Rema cold vulcanizing patches aren’t going to work on those nor would rubber cement. Different chemistry.