Sign Mounting Film?

3M 468MP is what you are looking for, there are some other brands but for peace of mind use the 3M

 

Let me know if you need the 3m adhesive. I have a roll here I would sell. Its been sitting here for a year and I have no use for it. 48 inch wide for sure.

 

Just use 3M VHB... a couple small strips does the trick. Don't see the need for complete coverage with a double sided adhesive.

 

Yeah but if you get 250 signs out of a sheet, that's a lot of extra time applying strips to each sign, when you could laminate a whole panel in 30 minutes with a laminator, including loading time...

If you are going for a permanent install, 467/8MP is a great option, but it will take all the paint with it whenever someone needs to move/remove the sign. It's also rather expensive, especially at 48", and I'm not sure if they sell a roll under 60 yards long. You could get 12" and run multiple strips for less of an investment...