When you bring two pieces of metal together, such as two pieces of pipe, you need to connect them using a joint. Once the joint is in place, you apply solder, along with heat, to make the connection permanent. Apply the solder to the outside of the metal. When you use presoldered joints, which has the solder already on the inside, all you need to do is heat the surface. The presoldered joint will do the rest.
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Things you need
- Wire brush
- Acid brush
- Propane torch
Clean off all surfaces using sandpaper or a wire brush.
Brush on flux with an acid brush. You need to cover all surfaces with flux.
Connect the two surfaces together.
Apply heat to the joined surfaces for a few seconds using a propane torch. Wear eye and face protection whenever you work with an open flame. The heat will connect the two surfaces without solder because the joints are presoldered.
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