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Weller Solder Wire


The Perfect Solder Joint


Enhance the quality of your soldering with Weller’s new WSW solder wire. Weller Solder Wire features 100% continuous flux core and high-quality alloys with no contamination from recycled metals to gives you high-quality, long-lasting solder joints every time.

Weller Soldering Wire - Group

Using Weller Solder Wire you receive these benefits:

  • Performance & Productivity
  • Trapped air pockets in the core of your solder wire can dilute the flux reduce the quality of your solder joint. Weller WSW’s guaranteed 100% continuous flux core means consistent quality and zero air pockets.
  • Reduced Ownership Costs
  • Ready to save labor and resources? WSW alloys reduce soldering tip consumption by up to 70% while cutting down flux splash.
  • Pure Quality Solder Joints
  • Weller WSW solder wire contains no recycled material. Each wire is made from high-quality alloys with the lowest possible contamination for a pure first metal melting on every solder joint.

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    Types of Solder Wire

    Weller Solder Wire SAC M1


    This tin-silver-copper alloy is a universal lead-free solder wire for various applications. It offers very fast wetting on difficult surfaces, and the reduced iron leaching significantly increases the life of your soldering tips.


  • Alloy Sn96.5 Ag3.0 Cu0.5
  • Flux content 3.5%
  • High soldering temperatures possible
  • Very fast wetting even on difficult surfaces, as dirty and oxidized materials
  • Excellent melting characteristics
  • No-Clean Flux soldering wire

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    Weller Solder Wire SAC L0


    This tin-silver-copper alloy is both lead-free and 100% halogen-free. It retains the low iron leaching of more universal SAC solder and still offers good wetting characteristics.


  • Alloy Sn96.5 Ag3.0 Cu0.5
  • Flux content 3.5%
  • 100% halogen free wire
  • High soldering temperatures possible
  • Good wetting characteristics
  • No-Clean Flux soldering wire

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    Weller Solder Wire SC L0


    This tin-copper alloy is lead-free, silver-free, and halogen-free. It offers good wetting and is easy on your solder tips with low iron leaching.


  • Alloy Sn99.3 Cu0.7
  • Flux content 3.5%
  • Guaranteed 100% continuous flux core
  • Good wetting characteristics
  • 100% halogen free wire
  • No-Clean Flux soldering wire

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    Weller Solder Wire SCN M1


    This tin-copper-nickel alloy creates stronger solder joints than other silver-free alloys while remaining cost-competitive. Wetting is very fast, and the resulting solder joint shines with perfect optics.


  • Alloy Sn99.3 Cu0.6 Ni0.05, Flux content 3.5%
  • Reduced Fe leaching to increase tip life time and reduce tip consumption by up to 70%
  • Very fast wetting even on difficult surfaces, as dirty and oxidized materials
  • High soldering temperatures possible with excellent melting characteristics
  • Solder joint shines (perfect optics)
  • No-Clean Flux soldering wire

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    Weller Solder Wire SC M1


    This tin-copper alloy is lead-free and silver free, making it a cost-effective alternative to SAC solders. It offers good wetting and is easy on your solder tips with low iron leaching.


  • Alloy Sn99.3 Cu0.7, Flux content 3.5%
  • Silver free alloy = cost effective
  • Very fast wetting even on difficult surfaces, as dirty and oxidized materials
  • Applicable on dirty and oxidized materials
  • Excellent melting characteristics
  • No-Clean Flux soldering wire

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    Weller Solder Wire SnPb


    This tin-lead solder alloy offers superior performance on aluminum and stainless-steel surfaces and under low processing temperatures.


  • Alloy Sn60 Pb40
  • Flux content 2.2%
  • Excellent melting characteristics
  • Solder joint shines (perfect optics)
  • No-Clean Flux soldering wire

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