A Flux is a Welding chemical cleaning agent, flowing agent, or purifying agent. Fluxes are Welding Agents that may have more than one function at a time. Fluxes are used in both extractive metallurgy and metal joining in Welding. sourcensave is an Online One Stop Shop for all fluxes and Welding Agents allows you to shop from a variety of Top Genuine Brands like Hindustan Petroleum, ESAB, D&H Secheron etc. sourcensave aims to bring about a significant transformational change in the Indirect material supply chain by cutting down inefficiencies and bringing in predictability through a suite of value added services.