LTronics Lead-Free Soldering Wire uses 2% Rosin flux to greatly reduce oxidation for easy soldering.

Specification:

• Composition: Tin (Sn) 99.3%, Bismuth (Bi) 0.7%
• Type: Lead-Free
• Diameter: 0.5mm or 1mm
• Core: Rosin-Core
• Flux: 2%
• Weight: 40g or 100g