




⚡ Solder smarter, not harder — join the elite pros who demand strength & safety!
KappZapp3.5S is a premium 3.5% silver solid core solder designed for professional-grade joints. Melting at a low 430°F, it delivers high tensile strength (33,000 psi) and exceptional durability against vibration and stress. NSF certified lead and cadmium-free, it’s safe for potable water systems and ideal for copper, brass, and stainless steel applications. Packaged in a convenient 1/2 lb spool, it pairs perfectly with Kapp Comet Flux for flawless results.
| Manufacturer | Kapp Alloy & Wire, Inc. |
| Part Number | 137-06202 |
| Item Weight | 1 pounds |
| Item model number | 137-062 |
| Is Discontinued By Manufacturer | No |
| Size | 1/2 pound |
| Color | Silver |
| Material | Tin 3.5% Silver Solder |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
8**8
works great
works great
D**S
It solders brass really well
I build brass model airplane mufflers.
F**K
Low melting point
Nice to use, heats up easy, flows nice
Trustpilot
2 weeks ago
2 months ago