Re: Does DOW 795 ever cure, bond or dry?
I've used DC 795 on several occasions, including once where a window cracked and I had to replace it. At that time the 795 had already been in place for about 4 years.
I removed the screws and yes, I was able to 'pry' the window off, but it did stay in place initially. Some of the 795 stayed with the window acrylic, some stayed 'stuck' to the cabin side. The stuff stuck to the cabin side was easy to cleanly remove by getting a scraper underneath it, it peeled off like a rubber gasket. It was soft and pliable, but not wet.
To me this is an advantage.. imagine trying to get 4 year old 4200 or 5200 off easily. I don't mind using the screws to hold the window down, having two methods of fastening never hurts. I wouldn't ever rely strictly on its 'adhesive' properties for an application like this. An office building fixed glass panel is another thing altogether.
One other thought... the stuff definitely has a shelf life and the tubes have a 'best before' date stamped on them.. maybe you got an old batch.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)