Yes

As already mentioned, the longer epoxy takes to cure, the longer it penetrates the wood you expect it bond or strengthen. The farther it penetrates, the greater the area/volume of the joint. The larger area strengthened, the stronger the structure.


I used to "autopsy" every crashed plane I could. You'd be amazed how easy it is to pull apart joints glued with 5-minute. 15-minute isn't half bad for strength. 30-minute seldom can be defeated. You wind up tearing away the wood near the joint.