Borax 7.4 oz Borax Flux for Melting Gold Silver Bulk for Jewelry Casting Kit Hand Casting Jewelry Making Supplies Metal Melting Kit

Dissolves Oxides and Impurities: When used in the melting process of metals such as gold and silver, borax effectively dissolves oxides and other impurities. This action results in the formation of a fluid borate slag which floats on top of the molten metal, allowing for easier separation and ensuring the purity of the final product.. Versatile Uses as a Flux: Borax serves multiple roles in metalworking. It can be used to glaze ceramic crucibles, enhancing their durability and performance. Addit