The short answer is yes, soft copper tubing can be soldered. However, it is important to note that soldering soft copper tubing requires extra care and attention compared to soldering hard copper tubing due to its malleable nature. The key to successfully soldering soft copper tubing lies in proper preparation and technique.
Preparing Soft Copper Tubing for Soldering
Before attempting to solder soft copper tubing, ensure that it is clean and free from any dirt, grease, or debris. Use a fitting brush or emery cloth to remove any tarnish or oxidation from the surface of the tubing, as this can interfere with the soldering process.
Using Flux
Flux is a chemical compound that helps facilitate the flow of solder and prevents oxidation during the soldering process. It is crucial to apply flux to the joint of the soft copper tubing before soldering. Apply a thin layer of flux using a brush or applicator to ensure an even distribution on the surface.
Soldering Soft Copper Tubing
When soldering soft copper tubing, it is essential to use a lower heat setting on your soldering iron or torch compared to soldering hard copper tubing. Excessive heat can cause the soft copper tubing to deform or collapse, reducing its integrity. Set the temperature to a level that will melt the solder but not compromise the structural integrity of the tubing.
Apply heat evenly to the joint, ensuring that all parts of the tubing are heated evenly. Once the copper tubing reaches the desired temperature, touch the solder to the joint, allowing it to melt and flow into the gap. Ensure that the solder fully penetrates and creates a strong bond without excess solder pooling in the joint.Soldering soft copper tubing is certainly possible, but it requires attention to detail and careful execution due to the tubing’s malleability. Proper preparation, including cleaning the tubing and applying flux, is crucial to ensure a successful solder joint. By using lower heat settings and applying even heat, one can effectively solder soft copper tubing while maintaining its integrity and functionality.