Kindly Morrow
Sn60/Pb40 Rosin Core Solder, 0.8mm, 1lb
Feed this through your iron and joints come out shiny, consistent, and strong. The 60/40 tin-lead formula with 1.7% rosin flux core is a workshop classic for a reason: it wets fast, flows clean, and works on everything from through-hole PCBs to chassis wiring. At 0.8mm diameter, it's thin enough for fine pitch work but forgiving enough for beginners.
Project idea: Wire up a full 40-pin GPIO breakout board for a Raspberry Pi, soldering every header pin clean without flux paste on hand. The rosin core handles the oxidation on the pins and you'll have a professional result in under an hour.
Key Features
- Sn60/Pb40 alloy, the standard eutectic-adjacent formula trusted in electronics for decades
- 0.8mm (0.031 in) diameter, suitable for PCB work, component leads, and general wiring
- 1.7% rosin flux core activates on heat and clears oxides without pre-applying flux paste
- 1 lb spool, enough for hundreds of joints before you need to reorder
- Ships from US warehouse, no long waits from overseas
- Melting point approximately 183-190°C, compatible with most soldering stations
- Rosin residue is non-conductive and can be left in place or cleaned with IPA
Frequently Asked Questions
Is this solder safe for electronics work, or is it industrial grade?
It's appropriate for electronics. The rosin core flux is the mildly activated (RMA) type standard in PCB assembly. Not an acid-core plumbing solder.
Do I need to apply additional flux with this solder?
For most through-hole and general wiring work, no. The built-in rosin core is sufficient. For stubborn SMD pads or rework, adding a touch of paste flux never hurts.
Should I clean the rosin residue after soldering?
Rosin residue is non-conductive, so leaving it is acceptable for most projects. For high-frequency RF circuits or a clean finished look, wipe with isopropyl alcohol and a brush.




