Eternabond Tape Quick Questions

Ok, before I read a ton of Eternabond info links, please tell me a couple of quick things so I can tell whether to even bother.

(slide out roof edge on the ends and part way along the outer edge at one end)

1. I have some 4" Eternabond tape with a removable backing on the sticky part. Will it stick together with say an inch of overlap so I can do 7" ?

2. Will it stick to painted aluminum and rubber roof where that AL is on top of the rubber roof edge--outer edge of slide, so it will seal the length of tear along the rubber roof where the aluminum length is?

3. Will it stick to the rubber roof material with old Dicor on it?

Thanks