Why do I love copper solder?
#1: It’s easy!
Jewelers have traditionally used silver solder to solder copper, but when using silver on copper, you have to be very careful so the silver seam doesn’t show. Since the copper solder is 93% copper (making it copper colored, even after you solder with it), I can enjoy the freedom of having my small mistakes invisible to the untrained eye. And it’s nice that the 7% phosphorous portion makes it self-fluxing, so I don’t have to use flux.
#2: It’s inexpensive.
Copper solder is about 1/10 the price of silver solder: silver solder is around $40 per ounce, but you can get 4 entire ounces of copper solder for around $14. I can experiment and practice all day and it only costs me a few dollars worth of materials. I can make affordable copper jewelry, and/or I can decide to upgrade to sterling silver, after practicing new techniques with copper.
#3: I have everything I need.
How do you use copper solder?
If you already know how to solder sterling or fine silver, then you already know how to solder copper. If you have no soldering experience, or have only used “soft” solder and soldering irons before, then copper solder is an EXCELLENT material to begin with.
So, where do you begin? At the very minimum, you need:
- A torch that gets hot enough for the job (all of Rings & Things’ torches work fine for this — but a soldering iron does not get hot enough).
- A firing surface — I use a magnesia soldering block on top of a ceramic fire block on top of an old cookie sheet.
Generally, you’ll drop your freshly-soldered item in a pickle pot or a metal can full of cool water. And there are safety considerations … you don’t really want to catch your clothing or kitchen/craft table on fire, or breathe or splash unknown chemicals, so if you’re completely new to soldering, pick up a book like Simple Soldering, by Kate Ferrant Richbourg, or Soldering Made Simple, by Joe Silvera.