Welding flux is also known as Flux core welding, it's a semi automatic welding process which uses a tubular electrode that creates flux with constant voltage. The Welding Flux can be used for many purposes, ranging from adjoining two metals to convert it into filler materials. These can be used in windy conditions as well. Its most important benefit is, you do not require to pre-clean the metal before welding. Adding one more advantage to the use of welding http://amplify.com/u/a14u3d