It's a 3m product, "very high bond" pressure sensitive adhesive. It's not cheap for a roll, gotta look at it as an investment. I have partial rolls over 10 years old that are still just fine, it'll keep. Has wonderful grab, also used to hold truck bodies together. It doesn't fully harden, can be removed. Will yellow a hair in direct uv but I've used it to make acrylic boxes that are still solid and clear a decade later. And you can disassemble it.
There are two types, one is foam and one is clear. You want the clear, the foam sucks and immediately goes into the trash. It's not removable and the foam rips apart. The clear is solid adhesive with no backer tape. Has a red liner.
https://www.3m.com/3M/en_US/p/d/b5005359003/ there are two other tapes in this series, the difference is in the thickness. You don't need or want that increased thickness unless your substrates are that uneven.
McMaster was my go to. Multiple thickness and widths available.
