Thanks!
Not generally. But what I've learned from using JB Weld with aluminum on other projects is that most of the bonding strength has to do technique. One thing I do is rough up the aluminum with some like 100 grit. Very rough stuff, but I just use it lightly. The other technique I use is that I apply the JB weld to edges when I can. If you just put the stuff on a smooth, flat, aluminum surface, it's not going to hold much at all. So if there are edges or seams nearby, I extend the weld to grab those edges and strengthen the whole deal.