Re: patching holes in aluminum boat
Scully:
I've used Marine JB weld, HTS2000 brazing rods and Marine-Tex Flex Set Epoxy on aluminum for various repairs with good results. I also have some interest in a product from Cabela's that some prople seem to like, green fusion bondage epoxy sticks that are applied with a torch.
For larger diameter holes, you may want to epoxy an aluminum backer plate behind the hole and then fill flush from the outside and sand smooth.
Good Luck!
Jim