Quality Assurance Benchmarks highlight workmanship of semi-finished and finished jewelry. Learn how to remove oxidation from an assembled ring made from platinum cobalt components with these helpful illustrations and instructional video.
Potential Problems and Engineering Features
Oxidation that occurs on platinum cobalt is dark, spotty, and covers certain areas on the piece, depending on the soldering situation. For best results when removing oxidation, firecoat the piece, mildly heat and then pickle.
Removal of Firecoat Prior to Soldering
The following problems can occur during normal wear if the piece is firecoated and the firecoat is not removed before soldering.
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