Check the listing for details. Standard rosin core solder is great for soldering electrical components, wiring. Condition: New. Listed at 8.99 USD. Standard 60/40 high-purity formula for electronics work, soldering electrical components, and other general-purpose applications. Easy to use and suitable for home repairs and various soldering projects. The high-activity, fully-activated flux creates more reliable soldering and leaves bright shiny solder joints after reflow. If additional flux is needed, our 6400022 rosin soldering flux is recommended. Rosin activated flux will leave slight to moderate post-process residues. These residues may be left on noncritical applications, but should be cleaned and removed from any critical or military-grade applications. It is recommended to perform any post-process cleaning within a two to three hour period at a temperature of around 100°F. This flux cored solder wire meets QQS-571E specification and applicable IPC-J-STD-004 and IPC-J-STD-006 requirements.8.99