Great Stuff expanding foam adhesion test
TL;DR: Expanding foam can be an excellent adhesive for delamination repairs if it is clamped. As described in some of my other recent posts, I am in the middle of repairing a large delaminated area...
Forum Discussion
I've used both to glue pieces of Styrofoam together. For large pieces the expanda foam is quicker and eaiser to use. Smaller items your forever trying to keep the can opened up so you don't waste the remainder of the contents. Gorilla glue works fine for several square feet and is easier to cut with a hot wire. Use a piece of scrap whatever as a squeegee for spreading the Gorilla glue.
