Lead Free Rosin Core Solder Wire K100LD 0.031 Inch Diameter 66 Core Flux Activated Low Cost Alloy 1 Pound Spool For Electronics Soldering Projects DIY Friendly With Smooth Wetting And Strong Joints

Lead-Free Rosin Core Solder Wire K100LD 0.031in, 1 lb Spool
✔️ 0.031 in dia, 66-core, lead-free K100LD, 3.3% flux, 1 lb spool

This lead-free rosin-core solder wire uses 3.3% flux in a 66-core K100LD alloy, with a 0.031 inch (0.80 mm) diameter. It comes on a 1 lb spool and is designed for reliable hand-soldering in electronics projects. The 48 Series activated rosin flux provides instant-action wetting and leaves residues that are non-conductive and non-corrosive, typically no-clean.

✅ Lead-free K100LD alloy, 0.031 in (0.80 mm) diameter, 66-core
✅ Rosin core flux 3.3% enhances wetting and solderability
✅ 48 Series activated rosin flux, ROM1 per J-STD-004
✅ 1 lb spool, ideal for electronics soldering projects and DIY

💡 What is a lead-free rosin-core solder wire used for? Handy for electronics assembly and repairs.
- used for reliable joints on PCB traces and component leads
- compatible with 0.031 in diameter wires and 66-core cores
- leaves non-conductive residues that typically don't require cleaning