jb weld good for phase-change?

[tft]

I was in the auto parts store the other day, and I was looking at some jb weld, and I saw that it is rated at something like 3000 psi. I was wondering if this could be used instead of solering/brazing on a phase change setup?

Thanks

 

[Warlord2]

I wouldnt count on it. Even some regular solder doesnt hold for long. I braze all my connections to be on the safe side.

 

[y0ungsta]

I agree with Warlord 2. Maybe you should do both, solder and use jb weld, because jb weld can with stand a lot of heat. Jb weld is usually used on engine blocks and other metal work. WHen you use jb weld be patient because it take a long time to harden (about 30-mins and 8 hours to dry)

 

[aenigma]

With jb-weld the surfaces have to be clean like on a microscopiclevel!
I have tried to use it to patch a little leak, doesn't even work.

Stick with brazing or silver solder...