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Home Brew Forums > Home Brewing Beer > DIY Projects > Soldering Stainless steel
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Old 04-17-2013, 09:47 PM   #1221
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While building my E-Brewery last year, I made sure to test conductance between my Keggle walls and the ground post on my 50A/240V extension cord. It is all good!

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Old 04-18-2013, 12:50 AM   #1222
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There's also a difference between soldering a copper stranded wire directly to the stainless part and soldering on a grounding lug to which a wire is then attached using mechanical means. If you clean off the flux from the lug there shouldn't be any problems.

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Old 04-24-2013, 03:40 PM   #1223
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I've been trying to solder my welding spud for my temperature probe on my BK, but when I've leaked test it I have been finding leaks. I've tried re-soldering the welding spud a couple times now, but every time there's been a leak.

This time I decided to try soldering on the outside of keg, hoping this would clog up any holes. I haven't leak tested it yet, but hoping this did the job this time. You guys see any issues by doing it this way? I know usually your supposed to wrap some solder around the underside of the welding spud and place it on your hole and just heat around the area and just watch it drop in.

Here's an image to kind of give a better idea of what I did.




Thanks.

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Old 04-25-2013, 12:26 AM   #1224
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either you are not using the right flux and/or you don't have it cleaned up enough. make sure you scrub the crap out of all the surface area being soldered with some fine sand paper or plumbers tape as they call it and use plenty of flux and keep the heat moving evenly. The joint looks like it is a cold solder joint with no wetting or flow of the solder.

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Old 04-25-2013, 12:48 AM   #1225
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IMHO - It's the wrong flux. There is only one that I know of that will bond any solder to SS. Harris Stay Clean Flux...

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Old 04-25-2013, 02:09 AM   #1226
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Also, it's not necessary to build up solder on the outside of the joint. Clean it up properly and do like Bobby in the vid.

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Old 04-30-2013, 03:16 AM   #1227
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Just got everything solder. Figured I should clean around the joints. What did you guys use?

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Old 04-30-2013, 05:46 AM   #1228
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Quote:
Originally Posted by LiquidFlame
Just got everything solder. Figured I should clean around the joints. What did you guys use?
Barkeepers friend cleans them up nicely
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Old 05-03-2013, 07:43 PM   #1229
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Actually that's the one query I had about Bobby's spud video, he cleans up with a wire brush drill attachment and I wanted to know if it was a stainless one.

I just used emery paper and elbow grease. But first I wiped up excess solder with a flux soaked rag while the metal was still hot - just on the keg, I didn't want to dislodge the nut.

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Old 05-03-2013, 08:05 PM   #1230
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It was definately stainless wire brush. I believe he even mentions it in the video; but if you use a carbon steel brush it will rust.

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