how to manage mylar

What is the best way to handle mylar when tying jigs? It has an unique way of doing what it wants to when I try to use it. It separates at both ends and is very frustrating to use. I have some ideas for using the stuff but am defeated every time because it comes apart. Suggestions are appreciated!

I'm not exactly sure what your trying to do, but I've used a hair straightner in the past to help it from separating. Plus mylar tubing comes in different wrap patterns. I've used some that seperates easier than others. A picture might get you more help.
NightProwler