After making the opening for the VIN I roughed up both surfaces to be bonded with 36 grit and modified a bondo spreader to spread the panel bond evenly in cornrows like you would installing bathroom tile .
I used a few clamps to press the pieces together and hold them for 24 hours. The top of the dash being covered is concave and there's compound curves on the ends so I formed the panel as well as I could before bonding and clamped it well.
Filed off the extra 1/16" overhang I'd left around the edges of the aluminum panel and cleaned out the original spot welds on the angled part. Then scuffed the whole area with 180 on a palm sander and primed. Followed that with a skim coat of filler and blocked it out with 180. Will prime and block again before final paint.
