What kind of adhesive should I use for display assembly?

"iPhones prior to the iPhone 6S do not need adhesive. There are some pre-cut adhesive kits available on iFixit and other websites. You''ll also find similar kits for other models and Android phones.

If you don't want to buy pre-cut kits, you can get Tesa Tape and cut to length. This saves money but takes more time and when the adhesive also doubles as water resistant seal, you're better off with pre-cut.

The same applies to iPads. Don't use the tape that comes pre-installed on most digitizers, it's usually garbage. You can get pre-cut tape from BowlerTech; they use 3M tape but it works really well too."

"Do you mean Iphone LCDs to frames. Are you refurbishing LCDs or do you mean Samsung LCDs to phone chassis. ?

Need a bit more information. Different adhesive for different processes."