- KAPPRAD™ 3/32” (2.4MM) CRAFTSMAN KIT$49.50
Kit contains: 10 – 18” long x 3/32” (2.4mm) diameter rods, a Stainless Steel brush for surface preparation, 2 oz. of Kapp Golden Flux™, and complete instructions.
VIEW PRODUCT - KAPPRAD™ 1/8” (3.2MM) SHOPMASTER KIT$99.50
Kit contains: 20 – 18” long x 1/8” (3.2mm) diameter rods, a Stainless Steel brush for surface preparation, 2 oz. of Kapp Golden Flux™, and complete instructions.
VIEW PRODUCT - KAPPRAD™ 1/8” (3.2MM) CRAFTSMAN KIT$59.50
Kit contains: 10 – 18” long x 1/8” (3.2mm) diameter rods, a Stainless Steel brush for surface preparation, 2 oz. of Kapp Golden Flux™, and complete instructions.
VIEW PRODUCT - KAPPRAD™ 3/32” (2.4MM) SHOPMASTER KIT$89.50
Kit contains: 20 – 18” long x 3/32” (2.4mm) diameter rods, a Stainless Steel brush for surface preparation, 2 oz. of Kapp Golden Flux™, and complete instructions.
VIEW PRODUCT
KappRad™ is a Tin-Zinc-Cadmium multipurpose solder developed specifically to join and repair Aluminum and Aluminum/Copper radiators as well as heat exchangers. Its lower melting point makes delicate repair work easier. KappRad™ forms very strong joints on most metals, including Aluminum, Stainless Steel, White Metal, Pewter, Copper, Brass, and Galvanized Steel. In addition, it can be plated with Chrome, Nickel, or Copper. In most cases, the repair is stronger than the original metal.
Applications & Features
- Join and repair:
- Aluminum and Aluminum/Copper radiators
- Heat exchanges
- Use any heat source :
- Oxy-acetylene torch
- Natural gas torch
- Propane torch
- Heat gun
- Soldering iron
- Paired with Kapp Golden™ Flux
This alloy is NOT recommended for food or potable water applications. Please see KappFree™ and/or KappZapp™ for Food Save and Potable Water Applications.
Properties
Composition |
|
Sn (Tin): |
40% |
Zn (Zinc): |
27% |
Cd (Cadmium): |
33% |
|
|
Technical Data |
|
Melting Range: |
350-500°F (176-260°C) |
Density: |
7.643lbs./cu. in. |
Electrical Conductivity: |
23 (% IACS @ 68°F) |
Shear Strength (Copper): |
11,000 psi @ 72°F |
Tensile Strength: |
Up to 20,000 psi |
*Note: Shear strengths based on double lap joints, Tensile strengths depend on base metals, soldering methods and type of joint.
Product Variants
KappRad™ is most often sold in 18” sticks of .125” (3.2mm) or .093” (2.4mm) diameters. It can be made in additional standard forms on 1 lb., 5 lb., and 25 lb. spools of diamters:
- 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 KappRad™ Technical Data Sheet
Click here for KappRad™ Safety Data Sheet