I used titebond 3 when I made the outdoor ipe furniture, and the Adirondack chairs.
I wiped the joints clean. the furniture has been outdoors for 4 or 5 years I believe, still holding fine.
I think you should email Charlie plesums, as I know he has done some work in Ipe, and I also think its posted on his site what he used.
whatever, make sure you wear a respirator, the dust from that stuff is brutal, really brutal. And youre shop will be yellow/green dusty.