Kester 24-6040-0027 Solder Wire, Rosin Core, Leaded, Sn60Pb40, 3.3%, 0.031′
An outstanding performance feature of this flux is the “instant-action” wetting behavior. 44 is classified as ROM1 per J-STD-004. The flux residues are non-corrosive, non-conductive and do not require removal in most applications under normal conditions of use.