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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HANDY FLO BRAZING PASTE® 500 is an exclusive system used by manufacturing jewelers and silversmiths for joining gold alloys. This series was developed for manufacturing jewelers and silversmiths to braze Karat gold alloys. Formulations are available to suit 3 to 22 Karat golds for a variety of color and temperature combinations.

Brazing and soldering pastes incorporate filler metal, flux, and a binder in a one-step application process. Because pastes are readily applied, they lend themselves well to both manual and automated production operations. We offer several flux/binder systems for specific temperature ranges and brazing processes.

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Product Active Temperature RangeMinimum Shelf LifeWorking Characteristics Technical Documents* SDS Safety Documents

For open air heating applications where flux is required. General purpose system works with all Karat variations. Typically formulated with -325 mesh powder, and 65% metal by weight.

525°C - 900°C
1000°F - 1650°F 
3 months Fairly restrictive, stable flux/binder system for most general purpose applications.

For furnace brazing applications. Metal concentrations are typically as high as 91%. Flux free.

0°C - 0°C
0°F - 0°F 
3 months Flux free formulation, burns off clean and will not leave any residue after heating.
HANDY FLO® 533/535

For induction and furnace brazing where some flux is required. Typically 75% metal by weight.

525°C - 900°C
1000°F - 1650°F 
3 months Fairly restrictive with a small addition of flux for furnace brazing applications.
Warranty Statement
This statement reflects the standard warranties of Lucas-Milhaupt, Inc. formulated products that include: brazing/soldering pastes, fluxes, and brazing aids.
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