Brazing & Soldering Products

Lucas-Milhaupt offers the most comprehensive inventory of alloys and forms in the industry and our expertise in brazing and soldering ensures that we can find the best-matched products for your needs.

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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.

HANDY FLUX™ has been the Brazing Industry Standard for Over 70 Years

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 brazing and induction brazing, as well as those for automatic flux dispensers.

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Product AvailabilityActive Temperature RangeAWS & International Standards Technical Documents* SDS Safety Documents

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

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™ 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 
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 
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 
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 
Warranty Statement
This statement reflects the standard warranties of Lucas-Milhaupt, Inc. formulated products that include: brazing/soldering pastes, fluxes, and brazing aids.
  0°C - 0°C
0°F - 0°F