Flux On Copper Sheet

Place the 2 pieces of copper brass you want to solder on a hard surface.

Flux on copper sheet. All post solder residues are water soluble and must be cleaned off with 60 c 140 f water to avoid cleanliness failures. This is due to the fact that pre tinning your sheets before lapping actually will allow 4 layers of copper to have solder flow while generally the flux alone will only draw flux to adhere to 2 layers. Make sure that you add some flux to the area to be soldered. Copper may be welded with a slightly oxidizing flame because the molten metal is protected by the oxide which is formed by the flame.

I use a paste flux which is self cleaning although you should still wipe it with some isopropyl alcohol afterwards. If a solder joint has been broken moisture and dirt will enter inside over time. In this case i m soldering a copper reducer to a piece of copper pipe. Do not attempt to re solder a broken seam.

A copper pipe is one of the most common materials used to distribute water throughout the home and copper pipes are typically joined to one another using flux and solder. In the soldering process heat is applied to the copper joint where the pipe and fitting meet and the gap between the joint is filled with molten metal. Oxygen free copper deoxidized copper rod should be used rather than oxygen bearing copper for gas welded assemblies. 30 is mild enough to use with electronic and electrical components.

If a flux is used to protect the molten metal the flame should be neutral. 30 is a liquid flux that is ideal for soldering copper or brass. Part 99088 flux cored aluminum braze al822 soldering aluminum to aluminum or copper 4 stick tube 4 4 out of 5 stars 55.