>I wouldn't tape it at all. Get Naugahyde or cloth to match the armrest
>and install it with good spray adhesive.
There's a lot to be said for this. Especially if there is an unseen
side of the armrest where the edges of the current covering come
together.
They sell vinyl that looks something like leather at fabric stores. And
lots of other fabrics. If you do both arms, it won't seem so bad if the
match to the old stuff is not perfect. (Do they sell actual Naugahyde
somewhere?)
Probbaby better than tape.
But as to tape, I'll tell you what I know. Gorilla tape is very sticky,
and has a black back, but probably doesn't mold itself around corners.
And silicon tape, which is the size of electric tape but wrapped on a
white plastic piece of tube (instead of a paper roll) is expensive
(though I think I found a nameless cheap version at Home Depot once) and
molds itself excellenty (and after a day or two merges into one piece)
but it's surface won't be that pleasant. Not shiny or smooth, not
sticky either