So I potentially have a pair of quite large entrance gates to make from Iroko, very heavy construction with a fair span of 2.9m or so per gate. Typically, with Iroko I've used standard Polyurethane glues without much issue (though I have heard of a few cases where adhesion using PU with Iroko hasn't been brilliant) but with something of this calibre that's exposed to as much weather as it will, combined with the weight I want something that's pretty much the be-all-end-all.
I've read about Phenol-Resorcinol glues which are typically used in boat building as a durable, waterproof glue that bonds oily timbers like teak very well. It's not cheap but I don't mind paying if it works very well. Another contender seems to be Epoxy Resin, which I have a little experience with but mostly from sticking non-wooden things to wood rather than wood to wood.
Just curious if the hivemind has any experience or input.