The "hinge tape" used in electrics is not fuel proof and is for hinging, not gap sealing. Packing tape, likewise, is not fuel proof. Hatch tape s too heavy and may limit travel. I have only ever sealed one model's hinge lines and that was after flying it showed a slight flutter. It is not necessary in most models. Does make for a very "finished" look in a nice covering job.

As mentioned above: if you are going to do it then use a strip of the same material as the covering.