Jewelry Casting Welding Auxiliaries Borax Flux for Melting Gold Silver

Features: 1. Borax has a wide variety of uses, a component of many products. 2. It can be used to glaze ceramic crucibles, as a flux in casting and soldering. 3. When used in melting of Gold and Silver, Borax helps to dissolve Oxides and other impurities, and produce a fluid borate slag that collects on the surface of the molten metal. 4. Adding a proper mount of borax can accelerate melting speed. 5. It should be stored in a dry place. Specification: Condition: 100percent Brand New Item Type: Flux Material: Borax Color: White Weight: Approx. 91g Package List: 1 Bag of Borax