I just thought I'd post that I found some tape that works very well for hinge sealing.

I used the Scotch brand MultiTask tape, you can find it at any office supply store. It disappears when you put it on, it is thin and goes down into the gap well.

I tried several brands of tape, this was by far the easiest to use and get a nice looking result.

Another thing I like about it is that it doesn't have that tape creaking sound some of the other brands did. I can't even tell it's on the plane.