What Type of Solder is Lead Free and Remains Bright and Silvery after Cleaning?

by Thomas Edwin.

What Type of Solder is Lead Free and Remains Bright and Silvery after Cleaning?  - Discussion on Jewelry Making Journal

What type of solder could I use that is 100% lead free and will remain bright and silvery after cleaning with citric acid?

I plan on building a copper shotgun condenser for alcohol purification.

After I solder the copper parts together I clean the entire piece in a concentrated solution of citric acid.

It cleans the copper very good but the solder joints gets a grayish black residue on it that has to be removed with a wire brush.

Even after wire brushing with time it becomes tarnished and dull.

I’m looking for a solder that stays clean and shiny after cleaning.

Thank you.

Thomas Edwin

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