Kester 24-6040-0027 - (1) Spool, 1 Pound per Spool Diameter: 0.031" Inch (0.80mm) Alloy: 60% Tin / 40% Lead (Product contains Halogen) Core / Flux Type: Rosin Core / 44 Flux (3.3%) Authentic ...

Many solders contain a rosin core, which aids in cleaning the ... To avoid this, use a rosin flux on the wire strands you solder together. Keep the tip of your soldering gun clean by wiping ...