Swiftech/HWL/EK/TC/AC/TFC: What is the melt temp of your radiator solder?

[Kibbler]

Just like the subject says.

I hope that is not too much to ask and thanks in advance if you can advise. If it is protected info then no worries, thanks all the same. It would help tremendously in choosing the proper brazing alloy/solder for working on your rads.

The solder composition would be helpful as well, just for reference sake. I assume everything is Pb free nowadays. Is it Sn/Ag/Cu mix? I also assume everyone is using water soluble flux nowadays.

On a side note: Over the years I've seen JB Weld mentioned a few times in watercooling. But in looking at the MSDS for JB Weld Resin, I found that the metal particles in the filler material are actually iron powder. Iron, which has a .40~.45V difference in anodic index (in the same range as aluminum) compared to brass/copper/nickel. Are there examples of this leading to corrosion, or is it on such a small scale that the effects are unnoticeable?

[Kibbler]

Oh out of curiosity I recall there was an old link with photos of cheerful old ladies stamping and painting Thermochill rads. Anyone still have that link? I got a great kick outta that!

[dingdong555]

Here - http://www.thermochill.co.uk/production/

Specifically - http://www.thermochill.co.uk/images/factory/11.jpg

[Serpentarius]

Just like the subject says.

I hope that is not too much to ask and thanks in advance if you can advise. If it is protected info then no worries, thanks all the same. It would help tremendously in choosing the proper brazing alloy/solder for working on your rads.

The solder composition would be helpful as well, just for reference sake. I assume everything is Pb free nowadays. Is it Sn/Ag/Cu mix? I also assume everyone is using water soluble flux nowadays.

On a side note: Over the years I've seen JB Weld mentioned a few times in watercooling. But in looking at the MSDS for JB Weld Resin, I found that the metal particles in the filler material are actually iron powder. Iron, which has a .40~.45V difference in anodic index (in the same range as aluminum) compared to brass/copper/nickel. Are there examples of this leading to corrosion, or is it on such a small scale that the effects are unnoticeable?

on contrary .... lead (Pb) still used on most radiators ... in fact they all used lead ... even on the custom rads on cars ..
http://www.metacafe.com/watch/198397...car_radiators/

>450°C maybe?
brazing require lotsa heat you know
http://en.wikipedia.org/wiki/Brazing

[Kibbler]

on contrary .... lead (Pb) still used on most radiators ... in fact they all used lead ... even on the custom rads on cars ..
http://www.metacafe.com/watch/198397...car_radiators/

>450°C maybe?
brazing require lotsa heat you know
http://en.wikipedia.org/wiki/Brazing

HWL/Swifty rads are ROHS compliant so surely they're lead-free. Others...I'm not so sure.

I've a butane torch ready and have access to an oxy-acetylene if things get outta hand (and by that I mean if there's a zombie outbreak and I need it to incinerate zombies. It should NOT be necessary for the small jobs I have in mind).

Knowing roughly the melting temperature of the solder they use would allow me to choose solders that melt cooler than that, which with the right amount of care means not de-soldering the original seals while I'm working on new seals.

[Serpentarius]

well .. there's a lot of guides in brazing ... most of them on copper tubes ...
but why do you want to break the rad for?

[Kibbler]

With all due respect I am asking Gabe/Eddy/Shoggy and others for specific input here, not about brazing in general.