I use the Acra-Gel, it's a 50-50 mix.
Sometimes it takes longer to harden up if I eye-ball the 50/50 a bit off.
I always prop the just glued up assembly under a 75w pre-AlGore litebulb in a simple desk swinglamp fixture. Down close but not touching to assembly. I leave it on for several hours.
It makes the glue set up quicker,,'turn over' is term I hear often.
I take the metal out when it's set up firmly (comes apart easy at this point,,may not later if you leave it together for a couple days!) and then put it back together again,,about the 10hr mark but sometimes less.
The glue is still somewhat rubbery sometimes yet , sometimes harder. depends on the temp around it.
I keep a room temp of 63 in the winter so I usually get the former.
I leave some excess on the mixing paper to check the stuff as mark does. That helps alot.
Then just reassemble and leave it for a couple days or so to cure.
It'll harden up by it's chemical hocus pocus. Makes it's own heat I understand in curing.
