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  1. KappZapp7 Solid 1/16" x 10 Foot Tube
    KappZapp7 Solid 1/16" x 10 Foot Tube
    $34.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid .062" (1.6mm) diameter x 10 ft in tube. VIEW PRODUCT
  2. KappZapp7 Solid 1/32" x 14 Foot Tube
    KappZapp7 Solid 1/32" x 14 Foot Tube
    $39.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid 1/32" (0.8mm) diameter x 14 ft in tube. VIEW PRODUCT
  3. KappZapp7 Solid 1/8" x 1/2 lb spool
    KappZapp7 Solid 1/8" x 1/2 lb spool
    $64.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid .125" (3.2mm) diameter x 1/2 lb spool. VIEW PRODUCT
  4. KappZapp7 Solid 1/16" x 1/2 lb spool
    KappZapp7 Solid 1/16" x 1/2 lb spool
    $64.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid .062" (1.6mm) diameter x 1/2 lb spool. VIEW PRODUCT
  5. KappZapp7 Solid 1/32" x 1/2 lb spool
    KappZapp7 Solid 1/32" x 1/2 lb spool
    $74.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid 1/32" (0.8mm) diameter x 1/2 lb spool. VIEW PRODUCT
  6. KappZapp7 Solid 1/8" x 1 lb spool
    KappZapp7 Solid 1/8" x 1 lb spool
    $89.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid .125" (3.2mm) diameter x 1 lb spool. VIEW PRODUCT
  7. KappZapp7 Solid 1/16" x 1 lb spool
    KappZapp7 Solid 1/16" x 1 lb spool
    $89.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid .062" (1.6mm) diameter x 1 lb spool. VIEW PRODUCT
  8. KappZapp7 Solid 1/32" x 1 lb spool
    KappZapp7 Solid 1/32" x 1 lb spool
    $99.50
    Super strength NSF certified 7% Silver solder for Copper, Brass and Stainless. Speaker industry standard for superior strength, conductivity, and vibration resistance. Slushy range (430°F - 570°F / 221°C - 299°C). - Solid 1/32" (0.8mm) diameter x 1 lb spool. VIEW PRODUCT

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KappZapp7™ Tin-Silver solder is an audio industry standard for vehicle and home theater speaker installations. Its 7% Silver content requires a higher soldering temperature, but offers superior strength, conductivity, and vibration resistance over both KappZapp3.5™ and KappZapp4™. KappZapp7™ is NSF Certified Lead-free.

 

NSF International certifies that this product complies with NSF/ANSI Standard 372: Drinking Water System Components – Lead Content. Product also Certified to NSF/ANSI 61, Annex G and conforms with Lead content requirements for “Lead-free” plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act in effect as of January 4, 2014. Weighted average lead content < 0.25%; Solder and flux lead content < 0.20%. This alloy complies with the European RoHS and REACH directives. No lead, cadmium or mercury used in production.

 

Applications

  • Car audio and home theater installations
  • Highest Strength and Vibration Resistance Stainless Steel to Copper solder available
  • Preferred choice when higher strength and conductivity are required
  • Paired with Kapp CopperBond™ Flux
  • Also available in a convenient one-step KappZapp7R™ Rosin Core solder

Properties

Composition

Sn (Tin):

93%

Ag (Silver):

7%

 

Technical Data

Melting Range:

430-570°F (221-299°C)

Tensile Strength (Copper):

15,500 psi

Tensile Strength (Stainless Steel):

31,000 psi

Shear Strength:

14,000 psi

Elongation:

49%

Electrical Conductivity:

20.1%

 

Product Variants

KappZapp7™ is available in standard forms:

  • 1/32” (0.031”) (0.8mm)
  • 1/16” (0.063”) (1.6mm)
  • 1/8” (0.125”) (3.2mm)

 

Custom alloys and forms are our specialty. Call a Kapp representative to discuss what size and diameter are right for you.

 

Matching Flux

Click here for KappZapp7™ Technical Data Sheet

 

Click here for KappZapp7™ Safety Data Sheet

 

Click here for instructions on how to use KappZapp7™

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