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SOLDER WIRES
Standard Core wire solders
Flux Type No-Clean Rosin Activated No-Clean Rosin Activated No-Clean
Formula 44 48 245
Product characteristics Activated rosin core with excellent wetting action. Industry standard for most electrical and electronic hand soldering. Very high activity rosin flux used for difficult to solder metal. Performance similar to mildly activated rosin core, but leaves a visually cleaner appearance after soldering.
Compliant specification IPC ANSI/J-STD-004 Flux designator ROM1 IPC ANSI/J-STD-004 Flux designator ROM1

Bellcore Issue 1 GR-78-CORE, IPC ANSI/J-STD-004 Flux designator ROLO

Residue removal method Not required for most applications but may be removed by solvent or Kester's #5768 Bio-Kleen® saponifier Not required for most applications but may be removed by solvent or Kester's #5768 Bio-Kleen® saponifier. Not required for most applications but may be removed by solvent or Kester's #5768 Bio-Kleen® saponifier.
       
Flux Type No-Clean No-Clean Rosin MildlyActivated Water-Soluble Organic
Formula 275 285 331
Product characteristics Superior wetting performance leaving an extremely clear post-soldering residue. Designed to be a low splattering core flux. Flux 275 can also be used for the Lead-Free application. Mildly activiated rosin cored wire for sensitive electronic and military application. Industry standard water washable core for most electrical and electronic hand soldering. Flux 331 can also can be used for Lead-Free application.
Compliant specification

Bellcore Issue 1 GR-78-CORE, IPC ANSI/J-STD-004 Flux designator ROLO

Bellcore Issue 1 GR-78-CORE, IPC ANSI/J-STD-004 Flux designator ROLO

ANSI/J-STD-004 Flux designator ORH1
Residue removal method Note required for most applications but may be removed by solvent or Kester's #5768 Bio-Kleen® saponifier. Note required for most applications but may be removed by solvent or Kester's #5768 Bio-Kleen® saponifier. Note required for most applications but may be removed by solvent or Kester's #5768 Bio-Kleen® saponifier.
Standard flux-core sizes     Standard wire diameters  
Metric*
0.25mm 1.00mm
0.30mm 1.20mm
0.40mm 1.30mm
0.50mm 1.50mm
0.60mm 1.60mm
0.64mm 2.00mm
0.75mm 2.50mm
0.80mm 3.00mm