Stainless steel requires special flux for the solder to flow smoothly, not the standard paste flux, sulfuric or muriatic acid. I just caught up to this thread, so am wondering how your repair turned out.Sugarmaker said:Very nice collection of irons. I have some soldering to do on a stainless maple syrup pan (candy machine pig) today. Maybe I will take a few shots and post them here. My collection of irons is limited to about three, but they work good for small soldering projects. Glad a friend taught me some of the basics in using these irons. I have used these skills a lot in keeping syrup pans leak free, and building items in stainless steel.
Nice line up of torches that you have too! I don't have any of those. I use Mapp or oxy acet for heating the irons.
They're not too bad, once you heat up the nozzle by burning the little sump full of gas the gas is literally vaporized as it passes through the needle valve. ( SAFETY NOTE : Do not open the needle until the sump is very near all burned out or you will have an 8' stream of burning gas shooting across your shop !!!) All you gotta do after the torch is heated is open the needle valve, then when the flame velocity (or intensity) goes down, pump up the pressure again with a few rapid strokes of the hand pump and you are back in business.soundguy said:nice irons.
them gasoline torches always kinda scared me..
Glad your fix went well. I bet if you tried the same repair only using the stainless flux and a solder called Staybrite 8, you'd find it a much easier repair. The Stay Clean in the red/white bottle is a diluted muriatic acid flux, if I'm remembering correctly isn't it ? Good for galvanized metal. Swimming pool strength muriatic does even better on galvanized. Sorry, just rambling.....Glad you got it done.Sugarmaker said:I whimped out and used a electric soldering iron with a similar big copper 4 sided tip to do the work on the stainless. I use a liquid flux Stay Clean brand, red and white plastic bottle. The difficult part on maple syrup equipment is that if its used, the joint is not clean inside where the sugar is trapped. Makes it very difficult to get the joint to resolder. I got it done and dlevered but it, took about three tries with water test in-between. I fill the contaier with watter and use compressed air to see if I find bubble/ leaks on the other side. Then drain and go back at it again.
Sorry no pictures I was lazy
Might be able to do a Google search on stainless steel flux. I'll try to remember to dig out my partial bottle and get a product name for you. You will be amazed the first time you try it and it sounds like you'll use it frequently.Sugarmaker said:Thanks for the tip on the Staybright 8 I will look for that flux. May work better than stay clean? I was taught with stay clean on stainless, haven't tried any thing else. I welded and soldered on my stainless 3' x 5' syrup pan partitions and the tubes and side panels in my homemade stainless steam away.
Doggone !!! I forgot again to dig out that bottle of SS flux. I'm going to have to send myself an alert text during the day to remember.....Stephenscity said:Do you have a Hobby Lobby in your area? Pretty sure I saw stainless supplies in the one here.