Welding flux we offer is a combination of carbonate and silicate materials used in welding processes to shield the weld from atmospheric gases. It is commonly used in metal joining and metallurgy. It is a material used to promote the fusion of metals and is employed in welding. The primary purpose of weld flux is to prevent oxidation of the base and filler materials during the welding process. When the heat of the weld zone reaches the flux, the flux melts and out gasses. The gases produced push the atmospheric gas back, preventing oxidation. We make them available to our customers in the most cost-efficient pricing.