My preferred strong sticky tape is Miracle Tape from Viva Las Vegastamps! (
www.stampo.com - don't want you to go to an x-rated website!) It is sold in various sizes - tape and sheets. The tape comes in 55 yd rolls in different widths and are priced accordingly.
I bought some ScorTape but can't wait to use up the roll. I know that many people love this tape and like that you can tear it off but I find it to be kinda gummy. I can feel it and sometimes see where it is laid even on heavier c/s that I have used to make 3-D items. That is why there are so many choices for everything out there - something for everyone.
Hope you find the tape that works for you.