MECHANIC Solder Wire 0.8mm Sn63-Pb37

The MECHANIC 0.8mm solder wire is well suited for general repair work that needs a larger amount of solder delivered quickly, such as soldering wires, connectors, and larger joints in circuits and electrical devices, without needing to pass the wire multiple times.

Its formula is Sn63/Pb37 alloy (63% tin, 37% lead), a eutectic alloy that transitions directly from liquid to solid with no in-between mushy phase, giving clean, stable joints on the first pass. It contains a built-in CJ flux at a precise 0.05% ratio, with a 75% expansion rate that helps the flux activate properly during heating for strong adhesion. Total flux content ranges between 1.0% and 3.0%, balancing cleaning power with adhesion without leaving excess residue.

It comes in a 40g spool, suited for technicians handling general soldering work that requires a thicker gauge than fine precision jobs.

Technical Specifications:

• Diameter: 0.8mm
• Alloy: Sn63/Pb37 (63% Tin / 37% Lead)
• Flux Ratio (CJ): 0.05%
• Expansion Rate: 75%
• Total Flux Content: 1.0% - 3.0%
• Weight: 40g