The SPC22129 is a high activity core flux Solder Wire designed for excellent instant wetting action, even on nickel surfaces. Although it is a RA-based material, the residues are non-corrosive if not cleaned. It accepts 14AWG standard wire gauge and it has 60/40 alloy content tin/lead. It is a high-activity water-soluble core flux for soldering difficult metals. It is designed for optimal cleanability, along with minimal smoke and odor. It is an RMA based core flux that provides wetting action comparable to typical RA flux. It is a halide-free and rosin based no-clean core flux that provides excellent wetting combined with optimal reliability and cosmetics.