What solder is best for copper pipe?
Lead-free solder melts at a higher temperature than the now-banned lead-based solder. MAPP gas torches burn hotter than propane, making them a better choice for modern solder. Five to 10 seconds of heating with a MAPP gas torch is all that’s required before you can feed solder into most 1/2- to 3/4-in.Click to see full answer. Similarly one may ask, what solder is used for copper pipe?Acid core solders are most often used in plumbing applications to join metal pipes or sheet metal. Rosin core solder is also fabricated with a hollow core inside the solder wire, but the flux used is a milder variety made of rosin, which is a solid form of resin derived from conifers such as pine.Also, how do you solder copper pipes? Prepare Inside of Fitting. Ream the inside of each fitting with a wire brush. Clean Outside Of Pipe. Use emery cloth or steel wool to clean the outside of the pipe. Apply Flux to Pipe. Unwind Solder Wire. Heat the Fitting to Sweat the Copper Pipe. Touch the Solder to the Pipe. Remove Flame from Fitting. Clean the Fitting. Also to know, do you need flux to solder copper pipe? Flux is a chemical which helps you solder. Flux prevents the copper from oxidizing as you heat the copper with the torch. In addition, it prevents the pipe from oxidizing as you heat it. You can solder without flux, but it is really difficult!Why does my solder not stick to copper pipe? Keep pipes dry when soldering Don’t try to solder pipes with water in them. Most of the heat from the torch goes into turning the water to steam, so the copper won’t get hot enough to melt the solder. Stop the trickle of water with a pipe plug. Push the plug into the pipe with the applicator tube provided.
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