This is the cheapest way to get j-b weld for sure.  Just be carful that you mix the two together very well, don't be lazy and just squirt the two on top of each other and then clamp (like I did)  My only complaint with this is that it can be tough to squeeze the tubes enough to get it out when the tube is half full or less (especially if its cold).  If you've got Herk hands or keep this in a warm place that should not be a problem. Be carful to lot let any of the mixed compound get on the tip of the tube unless you want to cut the lid off.  I have used this on busted transmission fluid lines and numerous other things, it works.