Frequently Asked Questions

Frequently asked questions attempts to answer questions that are regularly asked. Any questions that you feel are of general interest would be welcome.

Q. Why Do I experience cracking in traditional 18K Pink/Red Gold?
A. The metallurgy using 75 % Gold & 20 % or greater Copper produce a structure with few grain boundaries or fusion points, rendering it very brittle. Recommendations are to quick quench the castings, however this rarely eliminates the problem. A better alternative is to use a lower copper alloy. Some color is lost but the 18K is still reddish. This problem does not occur in lower karats.

Q. Is there any modern compilation of defects common to the jewelry manufacturer?
A. Yes, The World Gold Council & The Santa Fe Symposium have available what's called "Handbook On Casting Defects" In Gold Jewelry Manufacture. It is available from the Santa Fe Symposium. 505-839-3249

Q. Why does Rhodium plating wear off?
A. Because not enough is applied. A proper Rhodium plating is 2 1/2 to 3 1/2 minutes. Consult your plating supplier for more specific instructions regarding your application.

United Precious Metal Refining, Inc. takes recycling, environmental concerns and natural resource sustainability very seriously.  This commitment to the environment is reflected in our products as well as in our refining facility and techniques.