[Rojodiablo]

My vote?? Pinch it, clean it to the moon, and then using a small wire brush, scrub/ roughen the area so the JB Weld has a bit more surface to bite to. Don't thin it; it will flow enough in it's viscous form. Stir it up for several minutes, it sets off a touch faster with the extra mixing. As was stated, the corrosion factor makes aluminum really tough, and possibly really thin wall.