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.

Technical Documentation

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Dry/Powdered Fluxes


Fluxes are available as a dry powder flux, paste flux, slurry (dispensable) flux, or as a liquid flux. Dry powder fluxes are necessary for specialized applications in order for the flux to work properly when connecting a joint, which is required in cases when high temperature is involved, or in the furnace brazing process.

Advantages of Dry Powder Flux

  • Longer shelf life - Dry powder flux doesn't require water, therefore it has a longer shelf life.
  • Saves on costs - You are able to make a paste by adding water or alcohol by mixing paste as needed, therefore the product weighs less for shipping as a dry powder flux.

How to Properly Use Dry Powder Fluxes

Dry powder flux may be applied to the heated end of a brazing rod or brazing wire by dipping the heated rod into the flux container, also known as ""hot rodding."" It can also be applied to preheated surfaces prior to brazing to minimize part oxidation, however, it is important to note that when powder is applied to cold surfaces, it does not adhere very well compared to surfaces that are heated.

Read the Technical Documents, MSDS Safety Sheets, and the warranty statements to ensure that you are storing, stirring, and using the dry flux properly. You can also learn more about the function of flux and it's importance in the brazing process by visiting our page on Proper Brazing Procedure under Step 3: Fluxing the parts.

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Product AvailabilityAWS & International Standards Technical Documents* SDS Safety Documents
B1 Dry Flux

Flux for general purpose and Carbide Brazing applications. Ideal for salt bath brazing. Dry flux is boron modified for extra protection. Dry version of Handy B1 Flux.

1 lb (454 g) jar
5 lb (2.27 kg) jar
25 lb (11.34 kg) pail
50 lb (22.68 kg) pail

General purpose flux formulated for Hot Rodding or mixing with water for use as a paste flux. This flux was developed to stick to a heated wire or rod that is dipped into the container. Also can be mixed with water or alcohol to make a paste flux.

1 lb (454 g) jar
5 lb (2.27 kg) jar
25 lb (11.34 kg) pail
HANDY® Dry Flux 6040- Powder

For applications where a dry low volatile flux is desired. The 6040 flux is active in fluxing refractory oxides, and 6040 is recommended for the 1200° to 1500°F range (650°-815°C).

1 lb (454 g) jar
25 lb (11.34 kg) pail
Warranty Statement
This statement reflects the standard warranties of Lucas-Milhaupt, Inc. formulated products that include: brazing/soldering pastes, fluxes, and brazing aids.