Silver Bearing Solder Paste & Zinc Alloy?

Zinc alloy is pretty broad range of materials and so the first answer was – we don’t know.  That’s pretty weak so we found a zinc die cast part we use and tested it.  This was a Zinc AG40A die cast, un-plated material.  We tested the silver bearing solder paste in some porous sections and between the threads.  In both cases the paste did not adhere well to the zinc die cast. We tried again on a nickel-plated zinc part and got the same results.

Solder Paste Against Stainless Steel?

Having never tried that yet we figured the best approach would be to test it and see.  We have some 302 stainless brackets we use and drilled a bit of a hole in it.  Then we used the Pro 70 with a torch head to heat it up.  It actually worked pretty well.  The flux was messy but cleaned up pretty well with a wire brush.  We then touched the solder ball on the left side of the photo to the grinder and leveled it off nicely.  On the right side you can see after the grinder the color doesn’t quite match but it fills in well and stays attached.

Model #7459 Iso-Tip Solder Paste

This disposable 7.1 gram syringe of Silver Bearing Solder Paste is convenient while easy to apply. Our solder paste works with a match, lighter, soldering iron or torch. Our Silver Bearing Solder Paste allows anyone to solder all ferrous and non-ferrous materials. These metals include, black steel, bronze, cast iron, chrome, coated steel, copper, gold, nickel, platinum, silver and steel.

For more info about our solder paste or to buy, click here!