HVAC/R Alloys

Uniweld Aluma-Braze™ ALL-IN-ONE Flux Cored Aluminum Brazing Alloy. Solidus: 800° F/427°C – Liquidus: 900° F/482°C, Dimensions: 0.078″ x 100″ Approx. (1.981 mm x 254 mm).

Cadmium-free zinc-aluminum brazing filler metal. A Flux inner core means no manual flux application is required, Low-temperature alloy is ideal for brazing aluminum to aluminum or aluminum to copper. HVAC, Refrigeration, and Automotive repair work patching holes in aluminum coils.
Part No.: UAB

Uniweld’s UNI-4200 is used for joining and repairing aluminum extrusions and castings. Also can be used for the manufacture and repair of aluminum doors and windows, repairing ladders, gutters, siding, aluminum boats, and instrument boxes. Most Kirksite and Zinc base dies can be repaired with this alloy. May also be used as a wear-facing alloy on aluminum. UNI-4200 has a melting point of 710°F (375°C) and a 35,000 psi tensile strength.

Uniweld’s UNI-4300 is a great solution for the service technician who is faced with the task of repairing or joining aluminum to aluminum and aluminum to copper or brass. This product can be used on aluminum radiators, sheet metal work, aluminum tube to copper tube used in refrigeration and air conditioning units, and also on anodized aluminum. UNI-4300 is an excellent product for repair applications due to its low melting point 500°F (260°C) and 20,000 psi tensile strength.

Uniweld’s UNIBRITE 1450A is a high strength acid core silver bearing soft solder, free of cadmium, zinc, lead or antimony. Can be used on most alloys including copper, brass, stainless steel and nickel. With a low working temperature of 430°F (221°C) and a tensile strength of 15,000 psi this product eliminates weakening of the base metal caused by high heat brazing, resulting in greater overall strength of the components being joined.

Uniweld’s UNI-1500FC is used in superior wetting for complete tinning and general purpose brazing. Ideal for maintenance repairs on steel materials other than stainless steel. Can be used for fabricating and repair of galvanized sheets, pipes or angles. UNI-1500FC has a melting point of 1620°F (882°C) and a tensile strength of 75,000 psi.


Product Information

Part # Product Description
UAB Aluma-Braze™ All-in-one flux-cored aluminum brazing alloy.
Solidus: 800° F/427°C – Liquidus: 900° F/482°C
Dimensions: 0.078″ x 100″ Approx. (1.9812mm x 2540mm)
P3KH9 UNI-4200 Self-fluxing Aluminum rods
P4KD9S UNI-4300 Aluminum solder [10 ft. coil] with a 2 oz. flux bottle & metal tip flux applicator
P4KD9 UNI-4300 Aluminum solder [10 ft. coil] with a 1 oz. flux bottle
B1KD9 UNIBRITE 1450A 1/16″ X 10′ with 430°F [221°C]
C42F1 UNI-1500FC 1 lb Package of 3/32″ X 18″ Rods, Solidus Melting Point: 1620°F [882°C]