Liquid Tin, 125mL (421A-125ML)

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421A is a clear yellow immersion tin solution designed to coat copper traces and solder deposits with a thick coating layer of tin. The deposited tin is readily solderable and it e xtends the work life of circuits by protecting it from corrosion. The pure tin deposit provides excellent corrosion resistance, which is free of co‑deposited organics. 421A ensures good solderability for solder deposits by cleaning them and by making their surface bright and active. Show more