Solder with Flux- No
need to add flux to the surface—it's in the core of this solder. Tin/Lead
with Activated-Rosin Flux— Quick-acting flux dissolves surface oxides for
good wetting and strong connections. For use on brass and copper. Residue is
fungus resistant, as well as electrically conductive. Ideal for electrical work.
Meets Fed. Spec. QQ-S-571.