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  1. KappZapp3.5 Solid 1/16" x 10 Foot Tube
    KappZapp3.5 Solid 1/16" x 10 Foot Tube
    $24.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid .062" (1.6mm) diameter x 10 ft in tube. VIEW PRODUCT
  2. KappZapp3.5 Solid 1/32" x 14 Foot Tube
    KappZapp3.5 Solid 1/32" x 14 Foot Tube
    $29.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid 1/32" (0.8mm) diameter x 14 ft in tube. VIEW PRODUCT
  3. KappZapp3.5 Solid 1/8" x 1/2 lb spool
    KappZapp3.5 Solid 1/8" x 1/2 lb spool
    $39.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid .125" (3.2mm) diameter x 1/2 lb spool. VIEW PRODUCT
  4. KappZapp3.5 Solid 1/16" x 1/2 lb spool
    KappZapp3.5 Solid 1/16" x 1/2 lb spool
    $39.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid .062" (1.6mm) diameter x 1/2 lb spool. VIEW PRODUCT
  5. KappZapp3.5 Solid 1/32" x 1/2 lb spool
    KappZapp3.5 Solid 1/32" x 1/2 lb spool
    $49.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid 1/32" (0.8mm) diameter x 1/2 lb spool. VIEW PRODUCT
  6. KappZapp3.5 Solid 1/8" x 1 lb spool
    KappZapp3.5 Solid 1/8" x 1 lb spool
    $59.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid .125" (3.2mm) diameter x 1 lb spool. VIEW PRODUCT
  7. KappZapp3.5 Solid 1/16" x 1 lb spool
    KappZapp3.5 Solid 1/16" x 1 lb spool
    $59.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid .062" (1.6mm) diameter x 1 lb spool. VIEW PRODUCT
  8. KappZapp3.5 Solid 1/32" x 1 lb spool
    KappZapp3.5 Solid 1/32" x 1 lb spool
    $69.50
    High strength low temp NSF certified (430°F / 221°C) 3.5% Silver solder for Copper, Brass and Stainless - Solid 1/32" (0.8mm) diameter x 1 lb spool. VIEW PRODUCT

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KappZapp3.5™ Tin-Silver solder is a NSF certified Lead-free eutectic solder that provides a strong and ductile joint with a high tolerance to vibration and stress on Copper, Brass, and Stainless Steel. In many cases, a stronger overall assembly exists after joining with KappZapp3.5™ than with higher cost higher temperature Silver brazing alloys. The low eutectic melting temperature of 430°F (221°C) prevents loss of properties and minimizes distortion on thin wires, tabs, and sheets.

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

  • Sensitive circuit boards, thin wire, and instruments
  • Copper wires to Copper, Brass, and/or Stainless Steel tabs
  • Typical applications include:
  • Electronics
  • Fabrication
  • Ducting
  • Stainless Steel Food containers/equipment
  • Storage bins
  • Instruments
  • Copper plumbing pipe
  • Cooling coils for refrigerators
  • Paired with Kapp Comet™ Flux
  • Also available in KappZapp3.5R Rosin-Cored and KappZapp3.5A Acid-Cored Flux-filled wire for convenient one step soldering.

Properties

Composition

Tin (Sn):

96.5%

Silver (Ag):

3.5%

 

Technical Data

Melting Range:

Eutectic @ 430°F (221°C)

Tensile Strength (Copper):

14,000 psi

Tensile Strength (Stainless Steel):

25,000 psi

Shear Strength:

11,600 psi

Elongation:

48%

Electrical Conductivity:

16.4%

Sn=Tin, Ag=Silver

 

Product Variants

KappZapp3.5™ 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 KappZapp3.5™ Technical Data Sheet

Click here for KappZapp3.5™ Safety Data Sheet

Click here for instructions on how to solder with KappZapp3.5™

 

Let Us Help You Find your Tailored Solution. Act Now & Request A Quote.

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