by ghcoe » Tue Apr 07, 2020 7:56 am
Yes it is a form of delamination. From the looks of it, I would guess, you preshrunk the canvas before applying?
Being that you have not painted over it yet I would mix some TBII 50/50. Apply the 50/50 mix real heavy over the area and then roll it out with a paint roller. Roll it real good going different directions and overlap where you still have good canvas bond. The canvas should be porous enough for the glue to work it's way to the foam.
If you had already painted over it I use a syringe and inject 50/50 TBII mix between canvas and the foam. First I poke a hole on the opposite side of the delaminated area. I inject glue till it comes out the other hole and then take a roller and roll out in all directions. Forcing glue into the entire void.
Good luck.