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Handy Fluxes
A Flux for Every Brazing Need.
Flux is critical to the brazing and soldering process because it minimizes the oxidation that may form on both the brazing filler metal and the materials being joined. Numerous formulations of flux are available for virtually all metal joining operations.
The majority of common brazing applications are readily met by Handy Flux®, the general purpose flux that has remained an industry standard for over 70 years. It is a powerful general purpose flux that protects your parts up to 1600°F (871°C).
For low temperature brazing, Sure Flo Flux is a creamy and smooth composition that provides excellent adhesion to parts. Its consistent blend will not spatter or run during a rapid heating cycle. Sure Flo offers excellent fluxing action and oxide removal and will not crystallize under normal conditions.
We also offer fluxes for virtually every specialized application including formulations for high and low temperature applications, furnace and induction brazing, as well as those for automatic flux dispensers.
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| Product | Availability | Active Temperature Range | AWS & International Standards | Technical Documents* | MSDS Safety Documents* |
| Handy Flux - Paste All purpose, low temperature flux for use in brazing both ferrous and non ferrous metals and alloys. Handy Flux is an active flouride/borate -type flux which begins to melt and dissolve oxides at 600°F (320°C). Fully molten at 1100°F (600°C), it provides excellent protection of parts up to 1600°F (870°C). Cleanup should be with hot water. |
1/2 lb (227 g) jar 1 lb (454 g) jar 5 lb (2.27 kg) jar 25 lb (11.34 kg) pail 50 lb (22.68 kg) pail |
320°C -
600°C
600°F - 1100°F |
FB3A, AMS 3410 | ||
| Handy Flux Hi-Temp - Paste Used where brazing temperatures go into the 1600° to 2000°F (870°- 1100°C) range or for considerable lengths of time above 1450°F. This high temperature flux contains still less fluorine than type LT. It is often used with brazing alloys melting above 1600°F (870°C) - and provides the adherence and fluxing action a general purpose flux cannot give at these temperatures. |
1 lb (454 g) jar 25 lb (11.34 kg) pail 50 lb (22.68 kg) pail |
870°C -
1100°C
1600°F - 2000°F |
FB3D, AMS 3417 | ||
| Handy Flux Hi-Temp Boron modified - Paste For high temperature Ag, Cu, Ni brazing in the range of 1600° to 2200°F (870°-1200°C), involving longer time or base metals with refractory oxides. Particularly useful where refractory oxides are formed on the metals being joined. This added capability results from the addition of a small amount of finely powdered boron to the flux. |
1 lb (454 g) jar |
870°C -
1200°C
1600°F - 2200°F |
FB3D, AMS 3417 | ||
| Handy Flux Hi-Temp M - Paste or Powder High temperature furnace, induction or torch brazing, requiring maximum protection. Useful in the brazing of carbides, stainless and alloy steels, and nickel base alloys using copper alloy and gold alloy filler metals requiring brazing temperatures between 1650°-2200°F (899°-1204°C). |
1 lb (454 g) jar 5 lb (2.27 kg) jar 25 lb (11.34 kg) pail 50 lb (22.68 kg) pail |
899°C -
1204°C
1650°F - 2200°F |
FB3D, AMS 3417 | ||
| Handy Flux Type A-1 - Paste For brazing aluminum bronze and other alloys containing small amounts of aluminum and/or titanium. Type A-1 will readily flux the difficult refractory oxides that form on these alloys. It is not recommended for use with aluminum or titanium base alloys. Active range 1100° to 1600°F (600° to 870°C). |
1 lb (454 g) jar |
600°C -
870°C
1100°F - 1600°F |
FB4A | ||
| Handy Flux Type B-1 - Paste For brazing high chromium stainless steels, tungsten and chromium carbides, and molybdenum alloys. Particularly in applications where a larger amount of refractory oxides may form, use Handy Flux Type B-1 (boron modified). Its temperature range is 1100° to 1700°F (600°-925°C). It is valuable where local over-heating may occur, as in fast induction heating. |
1 lb (454 g) jar 5 lb (2.27 kg) jar 25 lb (11.34 kg) pail 50 lb (22.68 kg) pail |
600°C -
925°C
1100°F - 1700°F |
FB3C, AMS 3411 | ||
| Handy Flux Type LT - Paste For applications with long heating cycles, such as many furnace brazing jobs. More effective than a general purpose flux in long-heating cycle applications. Lower fluorine content results in higher melting temperature. More viscous, less active, but has a longer life. Also useful for induction heating applications, where tendency to overheat may exist. Active range: 1200° to 1600°F (650° - 870°C). |
1 lb (454 g) jar |
650°C -
870°C
1200°F - 1600°F |
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| Handy Flux Type TEC - Liquid For metal joining at temperatures in the 500° to 800°F (260° - 425°C) range. This widely used liquid flux provides excellent performance in soldering applications. |
1 pt (.475 liter) container 1 qt (.95 liter) container 1 gal (3.79 liter) container |
260°C -
425°C
500°F - 800°F |
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| Handy Liquid Flux - Liquid For brazing in furnaces with poor atmospheres or joining jewelry parts above 1160°F (625°C). Used where only a limited fluxing ability is desired. |
1 pt (.475 liter) container 1 qt (.95 liter) container 1 gal (3.79 liter) container |
600°C -
1100°C
871°F - 1600°F |
FB3E | ||

