How to Glue Copper

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Copper pipes are used in construction to transport water into the house and are often known as water lines. Connecting copper fittings and copper pipes together is known as soldering, or gluing them together. Once the copper pipes are properly soldered together the pipes will have a tight connection between each other that will not leak. Regardless of size, use, or brand of copper pipes, soldering the copper pipes is the same process.

Things You'll Need

  • Copper fitting
  • Wire brush
  • Abrasive cloth
  • Flux
  • Flux brush
  • Welding glove
  • Solder
  • Propane torch
  • Clean the copper fitting and the copper pipe which you will be connecting together. Use the abrasive cloth to sand the end of the copper pipe and the inside of the fitting. A wire brush can be used instead of the abrasive cloth to sand the inside of the copper fitting more easily.

  • Apply a thin coat of flux with the flux brush, around the inside of the copper fitting and the end of the copper pipe which you will be soldering together. Flux is a chemical which will finish cleaning the pipe and let the solder adhere to the pipe and the fitting.

  • Push the copper pipe into the fitting so it goes in all the way.

  • Put on the pair of welding gloves. Do not attempt to solder without it unless you have experience doing so. The copper pipes will heat up even if you are not heating the pipe directly and will burn your hand if you touch them without protection.

  • Turn on the propane torch. Apply the fire from the torch to the fitting and not the pipe. Once the fitting has heated up, keep the fire lightly on the fitting; with your other hand touch the connection point between the fitting and the pipe with the solder. The solder will be absorbed by the heat into the fitting and the pipe creating a water-tight seal. If the solder is not being absorbed, keep heating the fitting until it does. Continue soldering the rest of pipes together until you are done. Turn on the water and look at the seams for leaks. If you notice any leaks, add a bit more solder to the seams.

References

  • Photo Credit Comstock/Comstock/Getty Images
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