Roof drip gutter stripping tape, replacement?

[akadel]

Picked up my 02 X5, it has for sure been outside more than most. The black rubber stripping that runs along the roof/doors is coming up at the back near the tailgate.

Upon inspection it looks like there is a rubber channel that is glued to the body using some kind of sticky silicon tape and the seal snaps down over it. The channel has come up from the silicon tape.

Any idea on a replacement tape/seal to use to hold it down?