Sometimes, when making things with thermoplastic (I have Thibra; the other big brand here is Worbla), I want to be able to use other objects as models (like if I need a small cone I could wrap it around a sharp pencil, or if I'm making something that needs to fit onto something else, or making a mold of an existing object, etc.).
But about 90% of the time it ends up sticking very strongly to the model I've molded it around. I've had this problem with an unexpected range of materials, including (but not limited to): aluminum (polished and rough), mild steel, stainless steel, tool steel, brass, copper, wood (of varying porosity, from walnut to maple), ABS, PVC, LDPE, HDPE (the most surprising), polypropylene, polyester resins, polyurethane resins, polyurethane finishes, and on and on.
Name it, and I've probably made a hot gooey mess on it. With thermoplastic. (You're disgusting, get your mind out of the gutter!)
So that's a long way of asking: How do I keep this stuff from sticking to the models?
I've tried removing it in various stages of cooling, but, it doesn't seem to make a difference.