"What exactly is sterling silver filled wire?" ANSWER: This is a question that has been coming up more and more often. Precious metal wire terms can be a little confusing for some of us. Here are some quick facts to put in your hat.
FINE SILVER - .999 percent pure silver.
STERLING SILVER - 92.5 percent solid silver mixed with 7.5 per cent alloy such as brass, nickel, etc.
SILVER FILL - is a good choice for wire jewelry makers. It is made by a mechanical process by forming a tube of sterling silver and filling the tube with a base metal. The silver content is 5% or 1/20 of the total wire. Although silver filled is not as expensive as sterling silver wire, silver filled wire offers a cheaper alternative for jewelry maker. It is generally available in a wide variety of shapes, sizes, and tempers. A Few Facts About Silver Filled Wire There is 100 times more silver in silver filled than in silver plate Basically, silver filled wire is a good metal for a good price. It should always be represented properly and never misrepresented to your customer as sterling silver.
Your customer will usually ask, "How do I take care of it?" It's easy. Just care for it as you would any other jewelry. It is quite durable. A simple inexpensive way to clean silver filled jewelry is to soak it for a minute or two in a mild solution of ammonia and water or a commercial liquid jewelry cleaner. Rinse the jewelry thoroughly with water afterwards and let dry. And remember to keep your silver jewelry in plastic bags. Contact with air causes oxidation which we is called tarnish. Plastic bags are the cheaper and quickest method of storing silver.
There is also an anti-tarnish strip that is sold at jewelry stores which you can put inside the plastic bag to prevent the silver from tarnishing. Because of the nature of wire sculpture, the jewelry needs to be protected from being smashed or bent. It's a good idea to give your customer a cotton filled box for storing separately from their other jewelry. This will cut down on tarnish and keep it from being scratched by other jewelry. Plus it reduces the chance of a wire being pulled by being connected to another piece of jewelry.
SILVER PLATED - Silver plated metal has a very thin layer of silver on the surface of a base metal, usually applied by the process of electroplating. Plating makes the layer of silver a much thinner layer than silver filled. Many times the silver layer may be only a few molecules thick. If your customer has acidic skin, silver plated wire will last for about 1-2 days.
NICKEL SILVER - Nickel silver, German silver, or Alpalca is composed entirely of base metals and contains no sterling silver. It is a great craft wire but should be used with caution in the jewelry making industry as many people have allergic reactions to it.