We are closed this Friday, Sept. 22, 2023. All orders placed on Friday will be processed on Monday, Sept. 25, 2023. Sorry for the inconvenience.

This is your basic spool of lead free solder with a water soluble resin core. 0.031" gauge and 100 grams. This is a good spool for more advanced users that should last 6-12 months depending on how often you solder.

If you are just beginning to solder, we recommend you order the leaded solder. Lead-free solder is a bit harder to use (does not flow as well).

Mix: 99.3% Sn / 0.7% Cu

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