KappZapp3.5A™ Acid-cored Solder is a convenient solder for most Copper, Brass and Stainless Steel plumbing and sheet applications. The center of the solder contains an acidic flux. When the solder is heated, the flux is released and removes the oxide coating to allow a strong bond to form. ½ lb spool cored solder for smaller pipes, fittings and projects of Copper, Brass and most Stainless Steel alloys without additional flux. Learn More
KappZapp4™ contains 4% Silver (Ag), and is often preferred for hand soldering Copper wires and tabs. It has a wider slushy or plastic range (430°F-475°F and 221°C - 246°C) to allow users to manipulate parts while the solder joint is cooling and hardening. The 1 lb spool contains about 125 feet of solder. Use with Kapp Comet Flux™. Learn More
KappZapp7R™ Rosin-cored Solder has rapidly become the audio industry standard for electrical / electronic Copper applications. The 7% Silver solder creates extremely clean conductive joints with high strength, ductility and corrosion resistance. The center of the solder contains a mildly-acidic natural rosin flux. When the solder is heated, the flux is released and removes the oxide coating to allow a strong bond to form. The ½ lb spool contains about 62 feet of solder. Learn More
KappFree™ solder is THE Lead-free Cadmium-free formulation designed specifically to replace Tin-Lead solders in Copper, Brass and Stainless Steel plumbing applications. KappFree™ provides less joint strength, vibration resistance and thermal cycle fatigue resistance than KappZapp™ solders, so is used less often in high pressure or very cyclical heat exchangers. The tube contains approximately 10 feet of solder. It is great for small projects or to add to your hobby or tool kit. Use with Matching Comet™ Flux. Learn More
KappZapp3.5R™ is the most convenient solder for electrical/electronic connections between Copper wires and contacts. It melts completely at just 430°F (221°C). This minimizes the heat applied to your sensitive electronic parts and minimizes distortion of thin wire or tabs. The mild Rosin flux residue is removed with a wet q-tip or cloth. Learn More
KappZapp3.5A™ Acid-cored Solder is a convenient solder for most Copper, Brass and Stainless Steel plumbing and sheet applications. The center of the solder contains an acidic flux. When the solder is heated, the flux is released and removes the oxide coating to allow a strong bond to form. ½ lb spool cored solder for fast and accurate plumbing projects and repairs to Copper, Brass and most Stainless Steel plumbing without additional flux. Learn More
KappZapp3.5™ is the most popular of the low temperature Silver bearing solders. It melts completely at just 430°F (221°C). This minimizes the heat applied to your sensitive electronic parts and minimizes distortion of thin wire or tabs. The tube contains approximately 10 feet of solder. It is great for small projects or to add to your hobby or tool kit. Use with Kapp Comet Flux™. Learn More
KappZapp7R™ Rosin-cored Solder has rapidly become the audio industry standard for electrical / electronic Copper applications. The 7% Silver solder creates extremely clean conductive joints with high strength, ductility and corrosion resistance. The center of the solder contains a mildly-acidic natural rosin flux. When the solder is heated, the flux is released and removes the oxide coating to allow a strong bond to form. Learn More
KappFree™ solder is THE Lead-free Cadmium-free formulation designed specifically to replace Tin-Lead solders in Copper, Brass and Stainless Steel plumbing applications. KappFree™ provides less joint strength, vibration resistance and thermal cycle fatigue resistance than KappZapp™ solders, so is used less often in high pressure or very cyclical heat exchangers. Smaller diameter for smaller pipes, fittings and projects. Use with Matching Comet™ Flux. Learn More