Fluxes are chemical compounds that remove oxides and impurities from metal surfaces, improving the quality and strength of the bond formed during welding, soldering, or brazing.

Fluxes come in various forms, including solid, liquid, and paste. They can be categorized based on their chemical composition, such as rosin-based fluxes for soldering, acid-based fluxes for welding, and fluoride-based fluxes for brazing.

Selecting the right flux depends on several factors, including the type of metal being joined, the desired joint strength, and the specific application. It's recommended to consult technical resources or industry professionals to determine the most suitable flux for your project.

Fluxes can release fumes or gases, so it's crucial to work in a well-ventilated area. Proper protective gear, such as gloves, eye protection, and respiratory protection, should be worn to minimize exposure to harmful substances.