The point i was trying (and failing!) to make is that with such a high-tech sounding glue, the use of water being sprayed on to activate it seems not only low-tech by comparison but also unnecessary when something could presumably be added to activate it without needing to spray water on it. I still haven't put it all that well but i think you get the idea i'm getting at?
All the reasons you give for removing the dash are why i like it in situ and prefer to do it on a baking hot day. As i previously pointed out, the heat does make it a bit unpleasant but speeds and eases the process including making it easier to "push" the vinyl back to where it needs to be.
Each to their own and both methods have their merits, as long as the end result is what it should be it doesn't really matter how you get there.
As you say, some people are not up to doing anything remotely practical and sadly my coupe was previously looked after by a mechanic like that. I'm slowly but surely getting it right and i'm just glad it appears to have never had dash lift during the ownership of the woman that entrusted it to this clown else there would no doubt be a motley collection of self tappers and who knows what else adorning the top of the dash!
I do have a small job lined up in the near future that i might give the Gorilla Glue a try on and that is on my manual tyre changer. When i first got it, i invested in a sheet of neoprene to carve up and glue on to the various points that would contact the wheel during the tyre changing process.
At the time i used carpet spray glue which is pretty much EvilStik under pressure, give or take a chemical compound or two. It lasted fairly well but on the bit of angle iron which is mounted with the apex uppermost to act as a wedge to prevent the wheel moving while using the bead breaker, it lost adhesion fairly quickly.
If the Gorilla holds that then it should certainly hold the dash down!
)