![]() That is why our own Classic 100 Gel Flux is ideal for stained glass. You also want to choose a flux that won’t stain the copper before you have a chance to wipe it clean when soldering. The best flux for stained glass is a gel flux that has a thick enough liquid to wet and shine the solder seams when you hand-solder copper sheet metal or copper foil between the stained glass pieces. The best flux for your project should be strong enough to clean any remaining oxides, but not attack the stained glass pieces after. Flux comes in many different forms: inorganic or organic acid water-soluble, rosin, or no clean.Īny flux you choose will have some acid and the flux will need to cleaned or removed after you are finished soldering. Of course, choosing the right flux is important to making the best solder joint for your particular job or project. Not only does it get rid of the dirt and extra film, but it helps increases the wetting of the solder so it can flow much more smoothly.įlux has different functions in the soldering process: it helps to clean the metal by removing the contaminants and oxides, it keeps your soldering area free of oxides until the solder melts and covers the attachment area and its wetting agent helps to spread the solder correctly over the surface. While solder fills the gaps between the pieces, flux removes the oxide layer so the solder can bond more readily.įlux, due to its activators, is also a wetting agent. ![]() ![]() Flux is a chemical agent that is used both to clean and join the metals. When you are soldering stained glass, flux is a necessary component in the process.
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