taping wire - securing non-adhesive tape

If it's the same type of linerless tape I use, just stretch it to its' max and then wrap it tight while stretching. When this is done correctly you won't be able to remove it without a razor blade. If yours will not stretch then I can't help???

I use this method by pulling out a strip of tape and stretch it as I roll it back on the roll.
This way when it gets put on it tightens.