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When using 1600 platinum solder to repair rings and other jewelry, solder joints keep cracking and splitting. What can be done?

April 26, 2017cracking Jewelry joints Platinum Repair Rings solder splitting

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When using 1600 platinum solder to repair rings and other jewelry, solder joints keep cracking and splitting. What can be done?

1 Answer

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10 Posted

• Platinum has a high melting temperature (3265F) and is a poor heat conductor (gold is a great heat conductor). These two factors cause jewelers to have cold solder joints. Cold solder joints happen when the solder flows, but the joint was not heated enough to cause to joint to fuse together. When soldering platinum, heat the joint quickly using a hot flame directly on the joint and solder.