Filler metal with flux for brazing and soldering and method of making and using same

A wire for use in a brazing or soldering operation, the wire comprising:

• an elongated body of a metallic material extending along a lengthwise central axis;
• a first channel extending lengthwise along the central axis having a first opening formed along a length of the elongated body;
• a second channel extending lengthwise along the central axis having a second opening formed along a length of the elongated body, wherein the first and second channels comprise a pair of sidewalls extending lengthwise along the central axis separated by a transverse base, each sidewall extending radially outwardly from the base and forming an angle with the base greater than 90 degrees;
• a first volume of a first cured flux solution within the first channel and along at least a portion of the length of the elongated body;
• and
• a second volume of a second cured flux solution within the second channel and along at least a portion of the length of the elongated body, wherein the first and second cured flux solutions are formed by curing a flux solution comprising a polymer-based binder material and a flux material.