Conticore Blue 60-40 100g Soldering Wire Soft Flux Core DIA 0.8mm

Core: 60% tin, 40% lead

Flux: Rosin with organic solvents

The core of the solder wire is made of tin and lead, which are the two most common metals used in solder. The flux is a substance that helps to prevent oxidation and promote good solder joints. The flux used in Conticore soldering Wire Soft Flux Core DIA 0.8mm is rosin, which is a natural resin.