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Brazing Flux For Silver Brazing

Premium quality and high performance brazing fluxes prevent odd-size particles and non-active materials from getting into the braze joint. We offer white, black and purified brazing fluxes at great prices in a couple of different sizes.

The critical part of saw and tool brazing is what goes on inside the braze joint. Ideally, you want to prevent anything from going inside the braze joint in order to prevent problems. These high quality soldering fluxes are what you need to do the job right.

White Flux: Preferred by many because you can see the work through the brazing flux while heating.  White Brazing Flux is a combination of Potassium salts of Boron and Fluorine.  It consists of Potassium Tetraborate, Boric Acid, Potassium Pentaborate, Potassium Bifluoride, Sodium Dodecyl Sulfate, Boron and water. 

Black Flux: Black Brazing Flux gives maybe 50 to 100% more protection and stays good for about 400 degrees F higher than white brazing flux. Since brazing flux prevents oxidation by absorbing the oxygen this means that black brazing flux provides greater protection. 

Purified Flux: Purified flux is black flux that has had extra processing steps.  These processing steps take the black article out and leave the flux a rich, creamy brown color.  Purified flux is good for more time at higher temperatures, up to 1,700 F.