I have some corrosion on my rear crossbar which I want to repair. My boat is a frequently used 1993 Hobie 20. The corrosion is under the two stainless fittings which attach the rear crossbar to the hulls. I have done similar hole patching on my mast using JB Weld, but a suggestion was made that I should use HTS-2000 for the repairs in the future because it is stronger. I ordered some HTS-2000 on Ebay yesterday and I await its arrival. From the videos on Youtube the HTS-2000 looks like it is fairly easy to use and extremely strong. My question is, will heating up the crossbar with a propane torch weaken the aluminum (loss of temper)? Or is that loss of temper only when one uses a welding torch? Does anyone have experience using HTS-2000 for repairs on their boat?