👉 The forge fluid, also known as flux or tungsten fluorspar, is a critical component in metalworking, particularly in processes like welding and brazing. It serves as a chemical agent that enhances the bonding between metals by promoting the formation of a protective oxide layer, which prevents contamination and ensures a stronger, more durable joint. Typically made from a mixture of silica, fluxing agents like borax or calcium fluoride, and sometimes other additives, forge fluid helps to lower the melting point of the base metals and improves the overall quality and integrity of the weld or joint.
